7/24/2019 Surf Machining Quick Ref Card

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Surface Milling quick reference

Type ApplicationRoughing

FinishMilling

FollowingSurfaceContours

MillingMultipleSur

faces

CustomizingToolpathShap

MultipleAxisMilling

SpiralMilling

WorksAroundGap

s

MillWindow

Straight Cut X X

From Surface Isolines X X X

Cut Line X

Projected Cuts X X

Straight Cut:Straight cut lines projected fromretract plane down onto surface.Lines separated by STEP_OVER orSCALLOP_HGT-derived stepover.

3, 4, 5 Axis

From Surface Isolines:Cuts are projected onto the surface,and Pro/ENGINEER strives to fitthem along lines of constantcurvature on the surface.

3, 4, 5 Axis

Projected Cuts:Straight cut lines projected withinconfigurable boundaries that areprojected up from the surface.

3 Axis only

Cut Line:Cuts are blended in shape based on

any number of sketched or selectedgeometry references.

3, 4, 5 Axis

STEP_OVER vs. SCALLOP_HGTSTEP_OVER can be entered manually, ordriven by the entry of SCALLOP_HGT, whichallows Pro/ENGINEER to consider surfacegeometry in order to produce a surface withparticular amount of scallop remaining.Pro/ENGINEER dynamically calculates the

resulting step over, and uses wh

a

ichever issmaller.

Surface MillApplications

= recommendedX= not possible

Copyright 2002 by PTC PTC Technical Support

Cut LinesClosed:Useful where one cut line encloses thother. The tool will make concentric passes,blending from one cut line to the other.Open:Useful for all other situations.Projected:Allows a cut line to be sketched onthe retract plane and projected down to the

surface being machined.

Reference GeometryModel Surfaces:Useful for directly milling theexact geometry resident in the part. One ormore surfaces can be selected, and theselection is used only in the current sequence.Mill Surface:Ideal for combining references topart geometry with newly created geometry, orfor trimming down part geometry. Once create

can be used repeatedly.Mill Window:Useful for keeping the tool withina particular boundary, or for quickly selecting aregion on the model to machine

ParametersLACE_OPTION:While the cut definition controthe shape of each passes, the lace optioncontrols how one pass connects to the next.REMAINDER_SURFACE:Toggles the creatioof surface geometry that represents the materimissed by the sequence.TOOL_OVERLAP:Another way to control thetools step over, by specifying the amount of

overlap between passes.CUT_ANGLE:Rotates the angle of cuts aboutthe Z axis