cad cam manual file for print

8/11/2019 CAD CAM MANUAL File for Print

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INTRODUCTION OF COMPUTER AIDED DESIGN (CAD)

1. Design Process and Role of CAD

According to Shingly, the design process is an iterative procedure involving the

following six phases:

1. Recognition of need

2. Definition of problem3. Synthesis

4. Analysis and optimization

5. Evaluation

6. Presentation

Phase 3 (synthesis) includes defining the design problem, design conceptualization,

searching for design information, modeling and simulation.

Phase 4 (analysis and optimization) may include parameter study, finite element

analysis, etc. Although computers are being utilized more and more in the design process,

their use is still limited to the last four steps in the design and they are mainly used as a

tool that helps the designer, rather than as a replacement for the designer.

Benefits of Using CAD:

(1)Increasing productivity

(2)Improving quality of design

(3)Improving communications

(4)Creating data-base for manufacturing


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Geometric Modeling

The term geometric modeling (or representation) means a method of describing

commonly used curves and surfaces in terms of values of a few parameters.

Three types of Geometric Models

Wireframe Model : connect 3D vertex points, sometimes ambiguous.

Surface Model : define surface to form an object.

Solid Model : various representation schemes are used to describe a solid object

2. Solid Modeling

A solid modeling system is usually an interactive computer graphics system that is

intended to create true three-dimensional components and assemblies. Recent advances in

CAD software, computers, and graphical displays have made it possible to use solid

representations of components being considered in the design process. These solid models

can be employed innumerous ways.

Advantages of Solid Modeling

A realistic visual display: By producing a shaded visible surface image of the solid,

solid modeling allows a designer to see exactly what has been created.

Easy to deal with different views: Once a part has been created, we have the ability

to rotate, shade, section, or produce almost any view required by a designer.

Single associated model database: The solid modeler provides the only database

suitable for all CAD operations. Almost all information needed for part generation is

contained in the solid model.


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The algorithm should be able to ensure that it represents physically possible shape

that is complete and unambiguous Applications. e.g., automatic generation of a mesh for a

finite element analysis.

2. Requirements For Modeling Assembling

I.Part modeling and analysis

The part analysis includes the material type, mass and inertial properties,

functional properties of the faces, etc.

II.Hierarchical relationships

An assemble tree and assemble sequence must be given.

III.Mating conditions

There are two methods for specifying mating conditions: Specify thelocation and orientation of each part in the assembly, together with the

representation of the part itself, by providing a 4 x 4 homogeneous transformation

matrix. (i.e., transformation from MCS to WCS)Specify the spatial relationships

between its individual parts as mating conditions. For example, a mating condition

can consist of planar faces butting up against one another or requiring centerlines of

individual parts to be collinear (fits condition).

3. CAD/CAE/CAM Data Exchange

Computer databases are now replacing paper blueprints in defining product

geometry and non-geometry for all phases of product design, analysis, and manufacturing.

It becomes increasingly important to find effective procedures for transferring data among

CAD/CAE/CAM systems.


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The need to exchange modeling data is directly motivated by the need to integrate

and automate the design and manufacturing process to obtain the maximum benefits from

CAD/CAE/CAM systems.

Four Types of Modeling Data to be transferred:

(1)Shape

(2)Non shape

(3)Design

(4)Manufacturing

(1) Shape data consists of both geometrical and topological information as well as part

features. Entity attributes such as font, color, and layer as well as annotation are considered

part of the entity geometrical information. Topological information applies only toproducts described via solid modeling. Features allow high-level concept communication

about parts. Examples are hole, flange, web, pocket, chamfer, etc.

(2) Non shape dataincludes graphics data such as shaded images, and model global data

as measuring units of the database and the resolution of storing the database numerical

values.

(3) Design data has to do with the information that designers generate from geometric

models for analysis purposes. e.g., mass property and finite element mesh data.

(4) Manufacturing data consists of information such as tooling, NC tool paths, tolerance,

process planning, tool design, and bill of materials.


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Commonly Used CAD Data Exchange Format IGES (Initial Graphics Exchange

Specification)PDES (Product Data Exchange Using STEP)IGES is focused on CAD-to-

CAD exchange where primarily shape and non-shape data were to be transferred from one

system to another. PDES is previous called Product Data Exchange Standard.

It is for the exchange of complete product descriptions which covers the four types

of modeling data (i.e., shape, non-shape, design and manufacturing).Other data exchange

interfaces include: STL, Neutral, SET, ECAD, VDA, STEP, PDGS,CATIA, Render,

CGM, VRML, PATRAN, TIFF, etc.

4. Details about Fundamentals of Engineering Drawing

Theory of Projection:

Geometric figures are in two dimensions, hence they may be drawn to their sizes

and shapes on a sheet of paper as it is also in two dimensions.

A solid is a three dimensional objects, hence will not be possible to illustrate a solid

in its three dimensional true form on a paper. However, solids may be depicted on a paper

pictorially in its three dimensional form, but of course not in its true shape and sizes. Since

pictorial drawings do not show the true shape of the solid, while reading a pictorial

drawing it will be difficult to understand the shape of the interior and exterior of the solid.

Hence they cannot be used more effectively in engineering practice for construction work.

The drawings of objects for using in engineering practice have to be in their true shapes

and sizes. This has been made possible by principle of projection. The word projection,

is of Latin origin, meaning to throw forward.


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In the projection method, all the faces of solid, both visible and invisible, are

shown forward to a plane which is held normal to the direction of sight of the observer

who is viewing the object the manner exactly similar to that of a motion picture projection,

where a image of a film is projected on a screen.

Orthographic Projection:

If the projectors are perpendicular to the plane, then the projections is called

orthographic or orthogonal. The word orthographic means to write or to draw at right

angles. Orthographic projection is the method of representing the exact shape of an object

in two or more views on planes generally at right angles to each other by extending

perpendiculars from the object to the planes. Ti is universally used in Machine Drawing.

Principle Planes:

Horizontal planesVertical planes

Profile plane:

The Plane which is all Perpendicular to both HP and VP is known as the profile

plane. Intersection of the Principle planes results in four Quadrants. Depending upon

object placed in First, Second, Third, and Fourth Quadrant we Get the projections are,

First Angle projection

Second angle projection

Third angle projection

Fourth angle projection

For all angle of projection after getting the views we have to rotate the Horizontal

Plane to 90 Degree. Hence in Second and Fourth Angle the Views will coincide each other,

so that these Projection types are not used.


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Conversion of Pictorial Views into Orthographic Views:

Having understood the principles of orthographic projection, we can proceed to

deal with the application of the same to conversion of pictorial views into the orthographic

views.

Orthographic views can be drawn by two methods.

1. First Angle Projection method

2. Third angle projection method

1.First Angle Projection:

In the first angle system of projection the object is assumed to be placed in the first

quadrant (i.e. in front of V.P and above H.P) and the observer looks from outside. In other

words, the object is between the observer and the plane of projection.

The projections are made as follows: Elevation of Front view Projected on V.P.

Plan or Top View Projected on H.P

End View or Side View- Projected on Auxiliary plan (right or left)

Having drawn the three views, we have to rotate the H.P and V.P. so that they

come in the plane of V.P. Now, all the three views are in one plane and can be drawn on

the drawing sheet.

2.Third Angle Projection:

In the third-angle projection system the object is assumed to be situated in the third

quadrant i.e. behind V.P and below the H.P. the planes of projection are assumed to be

transparent. They lie between the object and the observer. When the observer views the

object from the front the rays of sight intersect the V.P.


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Auxiliary projection:

Auxiliary projection is obtained by projecting object on an Auxiliary Plane.

There are two types of Auxiliary Planes

AVP [Auxiliary Vertical Plane] plane parallel to HP and inclined to VP

AHP [Auxiliary Horizontal Plane] plane parallel to VP and inclined to

HP

Isometric projection:

3D Representation on a 2D plane and three equally inclined axes with included

angle of 120 degrees.

To imagine object from 2D orthographic views to 3D object is difficult. To

overcome this we use isometric which workers can easily visualize

ISO equal

Perspective projection:Normal human eyes view

Photographic views:

For more introductions refer machine drawing and machine design to

Update/refresh before getting into the software.

Classification of software:

a. System software

b. Application software

a)System software:

It is the operating system of the computer. Systems software act as a link between

application software and Hardware resource.

b)Application software:

It is the software developed for specific application.

Application software for CAD/CAM/CAE


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Lower end

Auto CAD

Micro station

Middle end

Mechanical desktop

Inventor

High end

CAD Pro/Engineer, CATIA, solid works

IDEAS, Unigraphics

CAM Solid CAM, CAPS turn, CAPS mill

CAE Ansys, MSC-Nastran, Cosmos,LS-Dyna

Nisha, Adams

6. Introduction to Pro/ENGINEER

Pro/ENGINEER is one of the most widely used CAD/CAM software program in

Todays world. Pro/e is a product of PTC (Parametric Technology Corporation)

www.ptc.com. Pro/e is used in automobile industry, aeronautics, ship building, tool design

etc. Pro/E 2001 is software for flexible engineering solutions which span the product

development enterprise process, including conceptual design, styling, design and

engineering, simulation, planning, manufacturing, and in-service support.


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Capabilities & Benefits:

Complete 3D modeling capabilities enable you to exceed your product quality and

time-to-market goals

Maximum production efficiency through automated generation of associative

tooling design, assembly instructions, and machine code

Ability to simulate and analyze virtual prototypes to improve product performance

and optimize product design

Ability to share digital product data seamlessly among all appropriate team

members

Compatibility with myriad CAD tools including associative data exchange

and industry standard data formats

To start Pro/E 2001 selects the icon to get into Pro/E. when Pro/E is

About to start we will get the screen specified below before the main screen of Pro/E.


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Gateway to Pro/ENGINEER screen layout

Main window

Pro/ENGINEER icons definition

A) Title bar:

Specifies the name of the current and the name of the software being used.

B) Pull down menu:

Menu bar is part of the main window and this contains menus to control the screen, control

viewing of entities, control the displays of datum features create, save files.

C) Toolbar:

Toolbars are an easy and fast way of accessing the necessary commands are macros.

D) Tool Tip:

A tip is available for every button existing in the toolbar when we place the mouse on the

button.


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B) Open Rep:Opens the selected Pro/E file in a type of representation.

Representation will be discussed in later sessions.

C) Cancel:Cancel the open command.

D) Preview:Displays the preview of the object in the selected file Pro/E file. This is

helpful to know what is to be opened before opening in Pro/E.

E)

Up One Level:Useful to go back the previous Folder /Directory.

H) Working Directory:Displays the Pro/E files in the working directory.

Save:

Menu: File>Save

Tool bar:

Keyboard: Ctrl+S

You can store file by specified name in the working directory by using save. Each

time you save a new version is created in the working directory.

CREATION OF BASIC SOLID FEATURES

EXTRUDE:

Insert (from menu bar) > Select Extrude > Click Sketcher icon (from dash board) >

Select alpine (from main window) > Click Sketch (from section dialogue box) > Select

References(check reference status fully placed) > Close (reference dialogue box) > Sketch

a figure (edit dimensions if required) > Click (blue color to continue) > Enter depth value


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(at prompt in dash board) > click preview (at dash board) > click (green color on dash

board) > file > save >click (green color) Insert (from menu bar) > Select Extrude > Click

Sketcher icon (from dash board) > Select alpine (from main window) > Click Sketch (from

section dialogue box) > Select References(check reference status fully placed) > Close

(reference dialogue box) > Sketch a figure (edit dimensions if required) > Click (blue color

to continue) > Enter depth value (at prompt in dash board) > click preview (at dash board)

> click (green color on dash board) > file > save >click (green color)

REVOLVE:

Insert > Revolve > Select Sketcher (icon from dash board) > Select plane for

sketching >Click sketch > Select References > Close reference > Draw figure > Draw

Centre line as axis(along which it should revolve) > Click (blue color) > Specify angle (in

dash board up to which it should rotate) > preview > click (green color)

SWEEP :


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Insert > Sweep > Protrusion > Click Sketch Trajectory (from sweep trajectory

menu manager) > Select a Plane > Okay (for direction) > Default (sketch view) > Select

References >Close (reference dialogue box) > Draw Trajectory > Click (blue color) >

Sketch Cross section(at the intersection of two yellow color axes) > Click (blue color) >

Preview > OK (to accept)

ASSEMBLY CONSTRAINTS:

Mate

Mate constraint two surfaces touch one another, coincident and facing each other.

Mate Offset

Mate offset constraint makes two planar surfaces parallel and facing each other.

The offset value determines the distance between two surfaces.

Align

Align constraint makes two planes coplanar, coincident and facing in the same

direction. It also aligns revolved surfaces or axes to make them coaxial.

Align Offset

This constraint aligns two planar surfaces at an offset, parallel and facing in the

same direction.

Insert

Insert constraint inserts a male revolved surface into a female revolved surface,

align axes.

Orient

The orient constraint orients two planar surfaces so that they are parallel and facing

in the same direction, offset is not specified.


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EXERCISES IN 3D PART MODELING

AIM:

To model the 3D part modeling as per the dimensions given and also

convert the 3D model into different views with Bill of materials.

PROCEDURE:

1. Model different parts of a flange coupling using Extrude, Revolve etc., features.

2. Select the assembly in solid works main menu.

3. Using Insert component icon of property manager, insert base component

& next components to be assemble.

4. Assemble using MATE Feature.

5. Continue the inserting the component & mating until the entirecomponent are assembled.

6. Save the assembly.

7. From the main menu of solid works select the drawing op tion.

8. Select the drawing sheet format size as A4 Landscape.

9. Using the model view manager browse the document to be open.

10.Click the view orientation from the model view manager & place the drawing

view in the proper place in the sheet as shown above.

11.Using the placed view as parent view project the other or needed views

12.Move cursor to any one view and right click the mouse button.

13.Select the Table BOM.

14.Place the BOM in the proper place in the drawing sheet.

15.Save the drawing sheet.


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Fig. 1 Fig. 2

Fig. 3 Fig.4


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Fig. 5 Fig. 6

Fig. 7

Result:

Thus the 3D part modelingis modeled & different views are taken.


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EXERCISES ON ASSEMBLY OF FLANGE COUPLING

AIM:

To model and assemble the flange coupling as per the dimensions given

and also convert the 3D model into different views with Bill of materials.

PROCEDURE:






5. Continue the inserting the component & mating until the entire

component are assembled.6. Save the assembly.










15.Save the drawing sheet


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FLANGE COUPLING ASSEMBLY VIEW

Result:

Thus the given flange coupling is modeled, assembled & different views are taken.


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EXERCISES ON ASSEMBLY OF PLUMMER BLOCK

AIM:

To model and assemble the Plummer block as per the dimensions given


PROCEDURE:



















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PLUMBER BLOCK ASSEMBLY VIEW

Result:

Thus the given Plummer block is modeled, assembled & different views are

taken.


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EXERCISES ON ASSEMBLY OF SCREW JACK

AIM:

To model and assemble the Screw Jack as per the dimensions given and

also convert the 3D model into different views with Bill of materials.

PROCEDURE:



















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SCREW JACK ASSEMBLY VIEW

Result:

Thus the given Screw Jack is modeled, assembled & different views are taken.


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EXERCISES ON ASSEMBLY OF UNIVERSAL COUPLING

AIM:

To model and assemble the Universal Coupling as per the dimensions

given and also convert the 3D model into different views with Bill of materials.

Procedure:



3. Using Insert component icon of property manager, insert base component& next components to be assemble.



component are assembled.

6. Save the assembly.












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UNIVERSAL COUPLING ASSEMBLY VIEW

Result:

Thus the given Universal Coupling is modeled, assembled & different views are

taken.


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EXERCISES ON ASSEMBLY OF MACHINE VICE

AIM:

To model and assemble the Machine Vice as per the dimensions given


PROCEDURE:



















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INTRODUCTION OF COMPUTER AIDED MANUFACTURING(CAM)

Computer-aided manufacturing (CAM)

Computer-aided manufacturing (CAM) is the use of computer-based

software tools that assist engineers and machinists in manufacturing or prototyping

product components. Its primary purpose is to create a faster production process and

components with more precise dimensions and material consistency, which in some

cases, uses only the required amount of raw material (thus minimizing waste), while

simultaneously reducing energy consumption. CAM is a programming tool that makes it

possible to manufacture physical models using computer-aided design (CAD) programs.

CAM creates real life versions of components designed within a software package

CNC Technology

Numerical Control (NC) is a software-based machine tool control technique

developed at Massachusetts Institute of Technology (MIT) in early 1960s. It has now

evolved into a mature technology known as Computer Numerical Control (CNC).

Although major applications of CNC even today continue to be in machining, it finds

applications in other processes such as sheet metal working, non-traditional machining

and inspection. Robots and Rapid Prototyping machines are also CNC controlled. In

fact, any process that can be visualized as a sequence of motions and switching

functions can be controlled by CNC. CNC is the basis of flexible automation which

helps industries cut down time-to-market and enables launch of even low volume

products. Unlimited muscle power, unmanned operation, independent axes coordinated

through software, simplified generic tooling even for the most complex jobs and

accurate construction are some of the salient features of CNC.


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CNC Machining

Automats and Special Purpose Machines (SPMs) require special cams/

templates and clutch settings for each part. Manufacture of these cams/ templates is

costly and slow. Furthermore, changing over from one part to the other on these

machines also consumes considerable time. The high cost and long time of these hard

automated machines to produce parts can be justified only in mass production. With the

advent of fast, rigid and accurate CNC machines and sophisticated CAM packages,

generation of NC programs and change over from one product to the other are easy and

fast as it does not require any mechanical change. These in conjunction with advanced

cutting tools have made High Speed Cutting (HSC) of hard materials a reality.

Therefore, CNC machining has become a standard means to produce dies and molds;

tool makers today require EDM only for producing inaccessible regions, sharp corners,

tiny features and desired surface quality. Intricate aerospace parts are realized through 5axis CNC machining. Internet technology in a global village enables designing in one

place, NC programming and verification in another place and actual machining in yet

another place.

Advantages of CNC

Flexibility Accuracy

Speed

Simplified fixturing and generic cutting tools

Storage of machining skill in NC programs

Less skilled operators will do


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G-codes

G-Code, or preparatory code or function, are functions in the Numerical control

programming language. The G-codes are the codes that position the tool and do the

actual work, as opposed to M-codes, that manages the machine; T for tool-related codes.

S and F are tool-Speed and tool-Feed, and finally D-codes for tool compensation. The

programming language of Numerical Control (NC) is sometimes informally called G-

code. But in actuality, G-codes are only a part of the NC-programming language that

controls NC and CNC machine tools.

A basic list of `G' operation codes is given below. These direct motion of the tool.

Preparatory Functions

G00 Rapid TraverseG01 Linear Interpolation (Cutting feed)G02 Circular Interpolation (Clockwise)

G03 Circular Interpolation (Counter Clockwise)

G04 Dwell

G28 Return to Machine reference position

G40 Tool nose radius compensation cancel

G41 Tool nose radius compensation left

G42 Tool nose radius compensation right

G50 Maximum spindle speed setting / Coordinate system settingG70 Finishing cycle

G71 Turning cycle (Rough)

G72 Facing cycle

G73 Pattern repeating cycle

G74 End face peck drilling

G75 Outer diameter / Internal diameter drilling

G76 Multiple thread cuttingG96 Constant surface speed


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G97 Constant surface speed cancel (constant rpm)

G98 Feed per minute

G99 Feed per revolution

Miscellaneous functions

M00 Program stop

M01 Optional stop

M03 Spindle clockwise

M04 Spindle counter clockwise

M05 Spindle halt

M08 Coolant on

M09 Coolant off

M10 Chuck or collet closeM11 Chuck or collet open

M30 Program End

M40 Chuck outer clamping

M41 Chuck inner clamping

CNCLathe Programme

Gcodes

G00RapidTraverse

G01Linearinterpolation

G02Circularinterpolationclockwise

G03Circularinterpolationcounterclockwise

G21Dimensionsareinmm

G28Homeposition

G40CompensationCancel

G50Spindlespeedclamp


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G70Finishing cycle

G71Multipleturningcycle

G75Multiplegroovingcycle

G76Multiplethreadingcycle

G90Boxturningcycle

G98Feedinmm/min

M-codes

M03SpindleONinclockwisedirection

M05 Spindlestop

M06 Toolchange

M10 Chuckopen M11Chuckclose

M30Programstopandrewind

M38Dooropen

M39Doorclose


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BOX TURNING CYCLE

Aim:

To write the manual part program to given dimensions and execute in CNC Lathe.

Material required:

Material: Aluminum

Size : Diameter 25 mm Length 50 mm

Program:

[BULLET X25 Z45]

G21 G98

G28 U0 W0

M06 T01

M03 S1200

G00 X25 Z2

G90 X24.5 Z-30 F60

X24

X23.5

X23X22.5

X22

X21.5

X21

X20.5

X20

G90 X19.5 Z-15 F60

X19

X18

X17

X16

X15

G28 U0 W0

M05

M30


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NOTE:


G28Homeposition

M03SpindleONinclockwisedirection

M05 Spindle stop

M06 Tool change

M30Programstop

G90 - Box Turning

G 98 Feed in mm/min

Result:

Thus the manual part program was written to the given dimensions and executed in

CNC Lathe.


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TAPER TURNING CYCLE

Aim:


Material required:

Material: Aluminum


Program:

[BULLET X25 Z30]

G21 G98

G28 U0 W0

M06 T02

M03 S1200

G00 X25 Z2

G90 X25 Z-15 R-0.5 F60

X25 R-1

X25 R-1.5

X25 R-2

X25 R-2.5

X25 R-3

X25 R-3.5

X25 R-4

X25 R-4.5

X25 R-5

G28 U0 W0

M05

M30


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NOTE:

R=

R=

R=-5 mm


G28Homeposition

M03Spindle ON in clock wisedirection

M05 Spindle stop

M06 Tool change

M30Programstop

G90 - Box Turning

G 98 Feed in mm/min

Result:


CNC Lathe.


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TAPER WITH STEP TURNING CYCLE

Aim:


Material required:

Material: Aluminum


Program:

[BULLET X25 Z45]

G21 G98

G28 U0 W0

M06 T03

M03 S1200

G00 X25 Z2

G90 X25 Z-15 F70

X24.5

X24

X23

X22

X21

X20

X19

X18

X16

X15.5

X15

G00 X25 Z-15

G90 X25 Z-30 R-0.5 F60


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NOTE:

R=

R=

R=-5 mm


G28Homeposition

M03Spindle ON in clockwise direction

M05 Spindlestop

M06 Toolchange

M30Programstop

G90 - Box Turning

G 98 Feed in mm/min

Result:


CNC Lathe.


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MILTIPLE TURNING CYCLE

Aim:


Material required:

Material: Aluminum


Program:

[BULLET X25 Z45]

G21 G98

G28 U0 W0

M06 T03

M03 S1200

G00 X25 Z2

G71 U0.5 R1

G71 P10 Q20 U0.1 W0.1 F70

N10 G01 X16

G01 Z0

G01 X18 Z-2

G01 Z-15

G02 X21 Z-18 R3

G01 Z-26

N20 G03 X25 Z-30 R4

M03 S1500

G70 P10 Q20 F50

G28 U0 W0

M05

M30

NOTE:

G71U0.5R1

Where,

U0.5depth of cut in mm


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R1-reliefinmm

G71- Multiple turning cycle

G71P10Q20U0.1W0.1F45;

Where;

P10starting block number

Q20End block number

U0.1finishing allowance in x-axis

W0.1finishing allowance in z-

axis

G70Finishing cycle between

first and last line number.

Conditions:

In the first line number only G01 and X

codes must only be written.

Z code for the first coordinate must be

written in the next line.

G71will not work for left downward

taper.

Between G71 cycle only G01,G02 and

G03 must be written.

Result:


CNC Lathe.


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DRILLING CYCLE

Aim:


Material required:

Material: Aluminum


Program:

[BULLET X25 Z45]

G21 G98

G28 U0 W0

M06 T02

M03 S1200

G00 X0 Z2

G74 X0 Z-20 Q500 F60

G28 U0 W0

M05

M30

NOTE:


G28Homeposition


M05 Spindlestop


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M06 Tool change

M30Programstop

G70 - Peak drilling

G 98 Feed in mm/min

Result:


CNC Lathe.


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EXTERNAL THREADING CYCLE

Aim:


Material required:

Material: Aluminum


Program:

[BULLET X20 Z30]

G21 G98

G28 U0 W0

M06 T03

M03 S600

G00 X18 Z2G76 P030060 Q50 R0.2

G76 X16.161 Z-14 P919 Q50 F1.5

G28 U0 W0

M05

M30

G21 G98

G28 U0 W0

M06 T04

M03 S600

G00 X18 Z2

G76 P031560 Q50 R0.2

G76 X16.161 Z-14 P919 Q50 F1.5

G28 U0 W0

M05

M30


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NOTE:

G76 - Multiple threading cycle

R - Retract

G76P031560Q50R0.1

Where,

P031560-

03no.offinishingpasses

15pulloutangle

60angleofthread

Q50depthofcutinmicrons

R0.1finishingallowance

G76X16.16 Z-14P919Q50F2;

Where,

X16.16corediameterforM30x2 fineseries

Z-14lengthofthread

P919depthofthreadinmicrons

Q50firstdepthofcut


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Result:


CNC Lathe.


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CNC-Milling Programme

Gcodes

G00Rapid Traverse

G01Linear interpolation

G02Circular interpolationclockwise

G03Circular interpolationcounter clockwise

G21Dimensions are in mm

G28Home position

G40Compensation Cancel

G50Spindle speed clamp

G83Peck drilling cycle

G90Absolute coordinate system

G91Incremental coordinate system

G94Feed in mm/min

G170,G171Circular Pocketing

G172,G173Rectangular Pocketing

M-codes


M05 Spindle stop

M06 Tool change

M10 Chuck open


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M11Chuck close

M30Program stop

M38Door open

M39Door close

M70Mirroring ON in X-axis

M71- Mirroring ON in Y-axis

M80Mirroring OFF in X-axis

M81Mirroring OFF in Y-axis

M98Sub program call statement

M99Sub program terminate


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LINEAR AND CIRCULAR INTERPOLATION

Aim:

To write the manual part program to given dimensions and execute in CNC Milling.

Material required:

Material: Aluminum

Size : Length 100mm, Width 100mm and Thickness 5mm

Program:

[BULLET X90 Y90 Z10]

G21 G94

G98 G91 X0 Y0 Z0

M03 S1200

M06 T 01

G00 G90 X0 Y0

G00 G90 Z5

G00 X-35 Y-25

G01 Z-1 F60G01 X-35 Y25

G02 X-25 Y35 R10

G01 X25 Y35

G03 X35 Y25 R10

G01 X35 Y-25

G01 X25 Y-35

G01 X-25 Y-35

G01 X-25 Y-25

G01 X-35 Y-25

G00 G90 Z5

G28 G91 Z0G28 G91 X0 Y0

M05

M30


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Result:


CNC Milling.


58/61

PEAK DRILLING

Aim:


Material required:

Material: Aluminum

Size : Length 100mm, Width 100mm and Thickness 10mmProgram:


G21 G94

G28 G91 X0. Y0. Z0.

M03 S1200

G00 G90 X0. Y0.

G00 G90 Z5.

G98 G83 X0. Y0. Z-7. P2 Q1 F60.

X-30. Y0.

X0. Y30.

X30. Y0.

X0. Y-30.

G80 G90 Z5.

G28 G91 Z0.

G28 G91 X0. Y0.

M05

M30


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60/61

MIRROR WITH SUBROUTINES

Aim:


Material required:

Material: Aluminum

Size : Length 100mm, Width 100mm and Thickness 10mm

Program:


G21 G94

G28 G91 X0 Y0 Z0

M03 S1500

G00 G90 X0 Y0 Z0

G00 G90 Z5

G00 X10 Y10

G01 Z0 F80

M98 P31111

G00 G90 Z25

M70

G00 X10 Y10G01 Z0 F60

M98 P3 1111

G00 990 Z5

M71

G00 X10 Y10

G01 Z0 F80

M98 P3 1111

G00 G90 Z5

M80

G00 X10 Y10

G01 Z0 F80

M98 P3 1111

G00 G90 Z5M81

G28 G91 Z0

G28 G91 X0 Y0

M05

M30


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O1111

G01 G91 Z-1 F60

G01 G90 X35 Y10

G01 X10 Y35

G01 X10 Y10

M99

NOTE:

O1111-sub program call

M70 = X Mirror ON

M71 = -X Mirror ON

M80 = Y Mirror ON

M81 = Y Mirror ON

Result:


CNC Milling.

cad cam manual file for print

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