cnc miling lab 1

8/10/2019 cnc miling lab 1

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UNIVERSITI TEKNIKAL MALAYSIA MELAKA

FACULTY OF MANUFACTURING ENGINEERING

DMFD 2853

CNC

LAB:1

Name : Nick Mathews a/l Alexander

Matrix No. : D051210030

Su mitted to : !n. "aharudin "in A u "akar


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1.0 INTRODUCTIONS

CNC train comes with lessons for all the CNC controls. Lessons can be added to the

system by the user using an integrated authoring system. Using the offline programming

system and graphical simulation as the front end with the option to drive a CNC machine tool

directly from the software. The program is created by a part programmer who must list all the

information and each specific operation required for the CNC machine to produce the part.

The use of a computer or computer-aided programming equipment greatly reduces the

programmer`s wor because it can receive and analy!e data" chec for input errors" ma e all

necessary calculations" and loc in data in a logical sequence.

2.0 OBJECTIVES

#.$ %ble to decide the processes used for machining of the machine part as given.#.# %ble to program manually with bloc s of code to perform rapid traverse" linear

interpolation and circular arcs from the dimensions given on the drawing. The

depth varies with the drawings.#.& 'erify the manual programming using CNCT(%)N - *%NUC +,

3.0 EXPERIMENT APPARATUS

&.$ CNC imulator for manual programming CNCT(%)N - *%NUC +,

4.0 PROCEDURE


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.$ /rocess plans the parts $ and # to be programmed.

.# ,anually program /art $ and /art # using the correct /reparatory and,iscellaneous Command for CNC programming.

.& )nput into the CNCT(%)N *%NUC +, to confirm program.

. *or /art #" write # different programs" one without 0 $10 # and the other with0 $10 # for profiling.

.2 3rite a complete report on the creation of manual programming using CNCsimulation.

/art $

4illet i!e 5 Length 6 #$7 mm

3idth 6 $#7 mm

8epth 6 #7 mm

8epth of Cut 5 2 mm

Tool 5 a9 *ace mill :7 mm diameter

b9 4all ;nd ,ill diameter $7 mm

,aterial 5 ,ild teel

/art #


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4illet i!e 5 Length 6 $$7 mm

3idth 6 $$7 mm

8epth 6 #7 mm

8epth of Cut 5 /rofiling 5 $7 mm

lotting 5 < mm

8rilling 5 $# mm

Tool 5 a9 *acing 5 *ace mill 27mm

b9 /rofiling 5 *lat end mill $#mm

c9 lotting 5 *lat end mill :mm

d9 Centre drilling 5 Centre drill #.2mm

e9 8rilling 5 Twist drill :mm

,aterial 5 0eneral /urpose %luminium5.0 PREPARATORY CODES


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Use to set the control for various machine movements =tool function9.

CODES FUNCTIONS

077 (apid traverse motion > used for non cutting moves quic to a

location to be machined07$ Linear interpolation motion > used for actual machining and metal

removal

07# Circular interpolation =cloc wise9

07& Circular interpolation =countercloc wise9

0#< ?ero home return

0 7 Tool diameter compensation cancel

0 $ Tool diameter compensation =left9

0 # Tool diameter compensation =right9

0 & Tool height offset

0 @ Tool height offset cancel

02 3or piece Coordinate preset

0A7 )nch programming

0


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,77 /rogram T+/

,7$ +ptional T+/

,7# ;nd of program

,7& pindle start cloc wise

,7 pindle start countercloc wise

,72 pindle T+/

,7: Tool change

,7A ,ist coolant +N

,7< *lood coolant +N

,7@ Coolant off

,&7 ;nd of program B reset to the top

, 7 pindle low range

, $ pindle high range

,@< ubprogram call

,@@ ;nd of subprogram B return to main program

5.2 LETTER ADDRESS COMMAND

LETTERS FUNCTIONS

N Line number or sequence number

0 /reparatory function


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* *eed rate

pindle speed

T Tool number

, ,iscellaneous function

B 8 %uDiliary letter address

+ tart of program number

%" 4" C Circular %Dis for E" F" B ?

E" F" ? Linear aDis

)" G" H Centre =E" F9 of an arc for preparatory functions


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.0 RESULT

.1 /art $

*igure $5 /roduct part $

*igure #5 4illet ettings


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*igure &5 Tool +ffsets

.2 /art #


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*igure 5 /roduct part # =3ithout using 0 $10 #9


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*igure 25 /roduct part # =Using 0 #9

*igure :5 4illet ettings part #


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!.0 DISCUSSION

i9 /art $

Program coding;

+$#&

,7: T72

,7& &777

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cnc miling lab 1

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