Creo oarametric milling

Tai ngay!!! Ban co the xoa dong chu nay!!! Creo Parametric Mil ing 2/244 Creo Parametric Milling Jouni Ahola ISBN 978-952-7074-31-2 Copyright Jouni Ahola February 2015 Publisher: Klaava Media www.klaava.com book@klaava.com All rights reserved This book may not be reproduced in any form, in whole or in part, without written permission from the author Creo Parametric Mil ing 3/244 Table of contents CREO PARAMETRIC INTERFACE ……………………………………………………………………………………………… 1.1 THIS BOOK ……………………………………………………………………………………………………… 1.2 CHAPTERS AND TASKS ……………………………………………………………………………………………………… 1.3 INTRODUCTION TO MILLING MANUFACTURING …………………………………………………………………………………… 7 1.4 STARTING ……………………………………………………………………………………………………… 1.5 OPTIONS AND CONFIGURATIONS ……………………………………………………………………………………………………… 10 1.5.1 MANUFACTURING CONFIGURATIONS …………………………………………………………………………………………….12 1.6 CREATING A NEW TEMPLATE ……………………………………………………………………………………………………… 1.7 WORKING DIRECTORY ……………………………………………………………………………………………………… 1.8 IMPORT REFERENCE MODEL ……………………………………………………………………………………………………… 1.8.1 CREATING DATUM FEATURES ……………………………………………………………………………………………………… 1.8.2 MODEL PROPERTIES ……………………………………………………………………………………………………… 1.9 CUTTING PARAMETERS ……………………………………………………………………………………………………… 41 1.9.1 CUTTING SPEED FORMULAS ……………………………………………………………………………………………………… 1.9.2 MILLING FEED CALCULATING ……………………………………………………………………………………………………… 1.9.3 SURFACE ROUGHNESS ……………………………………………………………………………………………………… 46 1.10 CAMSHAFT PLATE CUTTING PARAMETERS ………………………………………………………………………………………47 CREO PARAMETRIC BASIC MILLING …………………………………………………………………………………………48 2.1 COMMON PROCEDURE FOR CREATING A NEW MANUFACTURING MODEL ………………………………………………48 2.2 REFERENCE MODEL……………………………………………………………………………………………… 2.3 WORKPIECE MODEL……………………………………………………………………………………………… 51 2.4 CONFIGURING WORKCELL ……………………………………………………………………………………………………… 2.4.1 3-AXIS MILL MACHINE TOOL SIMULATION ………………………………………………………………………………………60 2.4.2 CREATING WORKCELL ……………………………………………………………………………………………………… 2.5 MANUFACTURING OPERATIONS……………………………………………………………………………………… 2.5.1 CREATING MACHINE COORDINATE SYSTEM …………………………………………………………………………………….65 2.5.2 CREATING OPERATIONS ……………………………………………………………………………………………………… 2.6 FIXTURES ……………………………………………………………………………………………………… 2.7 CUTTING TOOLS ……………………………………………………………………………………………………… 75 2.7.1 STANDARD MILLING TOOLS ……………………………………………………………………………………………………… 2.7.2 CREATING STANDARD MILLING TOOLS ………………………………………………………………………………………… 80 2.7.3 CREATING TOOL CUTTING DATA …………………………………………………………………………………………………… 82 2.7.4 SOLID MILLING TOOLS……………………………………………………………………………………………… 2.7.5 SOLID TOOLS COORDINATE SYSTEMS …………………………………………………………………………………………… 87 2.7.6 SOLID TOOL PARAMETERS ……………………………………………………………………………………………………… 88 2.8 TOOLS FOR CAMSHAFT PLATE ……………………………………………………………………………………………………… Creo Parametric Mil ing 4/244 2.8.1 FACE MILLING TOOL ……………………………………………………………………………………………………… 2.8.2 END MILL ……………………………………………………………………………………………………… 2.8.3 SPOT DRILL ……………………………………………………………………………………………………… 92 2.8.4 DRILLING TOOL ……………………………………………………………………………………………………… 2.8.5 TAPPING TOOL ……………………………………………………………………………………………………… 93 2.8.6 CHAMFER TOOL ……………………………………………………………………………………………………… 2.9 TOOL LIBRARY ……………………………………………………………………………………………………… 2.10 COMMON ABOUT NC SEQUENCES ………………………………………………………………………………………………… 98 2.10.1 MILLING MANUFACTURING PARAMETERS ………………………………………………………………………………….99 2.10.2 MILLING NC SEQUENCES……………………………………………………………………………………… 101 CAMSHAFT PLATE MILLING SEQUENCES ……………………………………………………………………………… 102 3.1 FACE MILLING ……………………………………………………………………………………………………… 102 3.1.1 EDITING NC SEQUENCE PARAMETERS ………………………………………………………………………………………… 107 3.1.2 LATERAL CONTROL FACE MILLING PARAMETERS …………………………………………………………………………… 112 3.1.3 MATERIAL REMOVAL FEATURE …………………………………………………………………………………………………… 115 3.2 PROFILE MILLING ……………………………………………………………………………………………………… 116 3.2.1 LEAD IN AND LEAD OUT ……………………………………………………………………………………………………… 119 3.2.2 DEPTH AND LATERAL CONTROL PARAMETERS ……………………………………………………………………………… 122 3.2.3 CUTTER COMPENSATION ……………………………………………………………………………………………………… 124 3.2.3.1 CUTTER COMPENSATION IN CREO …………………………………………………………………………………………… 125 3.3 VOLUME MILLING ……………………………………………………………………………………………………… 129 3.3.1 SCANNING VOLUME MILLING PARAMETERS ………………………………………………………………………………… 139 3.4 POCKET MILLING ……………………………………………………………………………………………………… 144 3.5 HOLEMAKING ……………………………………………………………………………………………………… 148 3.5.1 BASIC DRILLING ……………………………………………………………………………………………………… 150 3.5.2 COUNTERSINK DRILLING CYCLE …………………………………………………………………………………………………… 151 3.5.3 STANDARD DRILLING CYCLE ……………………………………………………………………………………………………… 153 3.5.4 TAPPING CYCLE ……………………………………………………………………………………………………… 157 3.6 TRAJECTORY MILLING ……………………………………………………………………………………………………… 160 3.6.1 2-AXIS TRAJECTORY MILLING ……………………………………………………………………………………………………… 161 3.7 OPERATION 2 ……………………………………………………………………………………………………… 169 3.8 MILL SURFACES AND MILL WINDOWS FOR FACE MILLING …………………………………………………………………… 171 3.9 MILL WINDOW FACE MILLING ……………………………………………………………………………………………………… 173 3.10 2-AXIS TRAJECTORY MILLING ……………………………………………………………………………………………………… 176 3.11 CHAMFER AND ROUND MILLING STEPS ……………………………………………………………………………………… 180 3.12 TOOLPATH SIMULATION ……………………………………………………………………………………………………… 184 3.12.1 PLAY PATH ……………………………………………………………………………………………………… 185 Creo Parametric Mil ing 5/244 3.12.2 MATERIAL REMOVAL SIMULATION ………………………………………………………………………………………… 186 3.12.3 MACHINE PLAY ……………………………………………………………………………………………………… 187 3.13 CAMSHAFT PLATE TOOLPATH SIMULATION ………………………………………………………………………………… 188 3.13.1 VERICUT SIMULATION ……………………………………………………………………………………………………… 190 3.13.2 MACHINE PLAY CONFIGURATION …………………………………………………………………………………………… 194 3.13.3 MACHINE PLAY SIMULATION……………………………………………………………………………………… 198 POSTPROCESSING ……………………………………………………………………………………………………… 202 4.1 WHAT IS A POSTPROCESSOR ……………………………………………………………………………………………………… 202 4.2 CL DATA ……………………………………………………………………………………………………… 205 4.3 CL DATA FOR THE CAMSHAFT PLATE BOTTOM SIDE …………………………………………………………………………… 207 4.3.1 CL DATA FOR THE CAMSHAFT PLATE TOP SIDE ……………………………………………………………………………… 210 4.3.2 MANIPULATING CL DATA FOR THE CAMSHAFT PLATE …………………………………………………………………… 213 CNC LANGUAGE AND STRUCTURE ………………………………………………………………………………………… 214 5.1 NC OR CNC ……………………………………………………………………………………………………… 214 5.2 STRUCTURE OF AN NC PROGRAM………………………………………………………………………………………… 215 5.3 COMMON G- AND M-CODES ……………………………………………………………………………………………………… 217 5.3.1 G-CODE CANNED CYCLES ……………………………………………………………………………………………………… 219 5.4 CAMSHAFT PLATE NC CODE ……………………………………………………………………………………………………… 220 5.5 CUSTOMIZING NC CODE OUTPUT …………………………………………………………………………………………………… 221 Creo Parametric Mil ing 233/244 Define the tool, 3 diameter ball mill Edit the parameters for the NC sequence Edit CUT_FEED to 400 Edit ROUGH_STEP_DEPTH to - Edit STEP_OVER to 0.5 Edit PROF_STOCK_ALLOW to 0 Select TYPE_3 from the SCAN_TYPE drop-down menu Edit CLEAR_DIST to 5 Edit SPINDLE_SPEED to 8000 Click OK Creo Parametric Mil ing 234/244 Configure the surface for machining Select Mill Window from the ribbon Select the top surface of the workpiece as the window placement plane Select the Depth tab and To Selected and select the surface as shown below: Click Complete Feature Edit the Cut Angle to 45 Click Preview Click OK Creo Parametric Mil ing 235/244 Review the resulting toolpath From the menu manager, click Play Path -> Screen Play Click Play Click Close in the Play Path dialog box Click Done Seq Create the CL Data file from the two NC Sequences and create the material removal simulation Notice the STEP_OVER parameter 0.5 and working allowance 1mm after roughing You can also notice that the mill window could be a little bigger You change the size of the mill window Creo Parametric Mil ing 236/244 Select Mill Window from the model tree and edit definition Select the Options tab and select the Offset window contour box Edit 3 for the offset value Click Complete Feature Note, any subsequent changes made to NC sequences means you must recreate the CL data files Update the changes by selecting the previously created CL Data file Notice the updated CL File extension ncl.2 Creo Parametric Mil ing 237/244 Create the material removal simulation again Task 6.2.2 is ready This completes the procedure Creo Parametric Mil ing 238/244 APPENDIX 7.1 Creo Parametric Quick Reference Card File Menu: Creo Parametric Mil ing 239/244 UI Customization Command Locator Creo Parametric Mil ing 240/244 Selection and Mouse Control Keyboard Shortcuts Creo Parametric Mil ing 241/244 Common Dashboard Controls Orienting the Model Creo Parametric Mil ing 242/244 Model Appearance Advanced Selection: Chain & Surface Set Construction (1/2) Creo Parametric Mil ing 243/244 Advanced Selection: Chain & Surface Set Construction (2/2) PTC.com Creo Parametric Mil ing 244/244 INDEX A L APT……………………………………………… 200, 201, 204 Layers ……………………………………………………… 22, 23 ASCII ………………………………………… 7, 203, 204, 213 Austin N.C Inc M ……………………………………………… 200 Machine Assembly 7, 56, 57, 59, 60, 86, 185, 192, 193, B 196 Basic Drilling………………………………………………… 149 Machine Simulation ……………… 7, 59, 60, 86, 185, 192 Boring Cycle …………………………………… 215, 216, 217 MCD ……………… 7, 203, 204, 205, 206, 208, 209, 220 MCD file ……………………………………………………… 200 C M-Codes ……………………………………………………… 215 CAM ……………………………………………………………… 5 Milling Manufacturing ……………………………………… Canned Cycle ………………………………………… 216, 217 Modal………………………………………………………… 214 CL Data … 7, 55, 56, 58, 62, 74, 77, 78, 118, 121, 148, N 151, 154, 158, 160, 186, 203, 204, 205, 208, 209, 219, 220, 234 NC block ……………………………………………… 213, 214 Clearance Level ……………………………………………….62 NC program ………………………………………………… 213 CNC ……6, 7, 42, 59, 123, 188, 200, 212, 214, 217, 221 NC steps …………………………………………………… 7, 203 Cutter Compensation ………….54, 55, 56, 123, 124, 160 NC word ……………………………………………………… 213 Non-Modal…………………………………………………… 214 D Datum Features O ……………………………………………… 31 DIN 66025 …………………………………………………… 212 Operation ……………………………………………………… 67 Output Tab ………………………………………………………54 E EN40B P …………………………………… 46, 67, 71, 82, 102 Entry/Exit Motions ……… 107, 119, 141, 142, 166, 177 Postprocessor ……… 125, 200, 201, 206, 209, 211, 217 Profile Milling ……………………………………………… 115 F Face Milling Q ………………………………………………… 101 Feed rate ………………………………………………… 40, 45 Quick Reference Card …………………………………… 236 Fixture ………………………………………………… 6, 68, 71 R G Rapid Feed ………………………………………………………55 G-code…………………………………… 212, 213, 214, 217 Reference Model … 7, 28, 48, 50, 51, 62, 116, 117, 128, Groove ………………………………………………………… 100 130, 133, 134, 136, 226 Retract plane ………………………………………………….62 H RPM ……………………………………………………… 40, 215 Hardness HB ……………………………………………………46 Holemaking ………………………………………………… 147 S I Solid Tools……………………………… 11, 74, 84, 87, 102 ISO 6983 ……………………………………………………… 212 Standard Tools …………………………………… 76, 88, 90 STEP-format J ……………………………………………… 5, 28 Surface Milling ………………………………… 77, 222, 223 Job ………………………………………………… 40, 101, 212 T K Tensile Strength ……………………………………………….46 Keyboard Shortcuts ……………………………………… 238 Tool Parameters ……………………………… 76, 84, 85, 87 Creo Parametric Mil ing 245/244 U X Units ………………………………………………………………35 X-axis ……………………………………………… 18, 111, 138 V,W Y Vericut ……………………………… 184, 188, 189, 191, 228 Y-axis …………………………………………………………….18 Work Center ………………………………………………… 219 Yield Stress …………………………………………………… 46 Workcell 12, 54, 60, 61, 62, 74, 78, 100, 118, 124, 160, Z 192, 194, 196 Workpiece ………………………………………………………50 Z-axis ……………………………… 18, 62, 84, 86, 159, 160