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دانلود کتاب Fundamentals of CNC Machining. A Practical Guide for Beginners
دانلود کتاب مبانی ماشینکاری CNC راهنمای عملی برای مبتدیان
مشخصات کتاب
Fundamentals of CNC Machining. A Practical Guide for Beginners
ویرایش:
نویسندگان: AUTODESK CAM
سری:
ISBN (شابک) : 0615500595, 9780615500591
ناشر: Autodesk, Inc.
سال نشر: 2014
تعداد صفحات: 256
زبان: English
فرمت فایل : PDF (درصورت درخواست کاربر به PDF، EPUB یا AZW3 تبدیل می شود)
حجم فایل: 14 مگابایت
قیمت کتاب (تومان) : 73,000
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توضیحاتی درمورد کتاب به خارجی
فهرست مطالب
Table of Contents
Chapter 1: Introduction & CNC Process Overview
Description ........................................................ 1-‐3
Prerequisites .................................................. 1-‐3
Audience ....................................................... 1-‐3
Course Design ................................................. 1-‐3
SRP vs. RP ....................................................... 1-‐4
Prototype vs. Production Machining .............................. 1-‐4
Required Tools and Equipment .................................... 1-‐4
Lessons and Appendices ........................................... 1-‐5
Instructional Resources ........................................... 1-‐5
Recommended Use ................................................... 1-‐6
Overview of CAD/CAM Process ...................................... 1-‐6
Chapter 2: Shop Safety
Overview ........................................................... 2-‐3
Safety Awareness .................................................. 2-‐3
Personal Conduct & Shop Etiquette ............................... 2-‐4
Shop Clothing ..................................................... 2-‐4
Proper Shop Attire Illustration .............................. 2-‐5
General Safety Practices ......................................... 2-‐6
CNC Safety Practices ............................................. 2-‐6
Safety Contract .................................................... 2-‐7
Safety Contract Form ......................................... 2-‐8
Chapter 3: CNC Tools
Overview .......................................... ................ 3-‐3
End Mills .......................................................... 3-‐3
Face Mill ......................................................... 3-‐4
Corner Radius Mill ............................................... 3-‐5
Slot Mill/Slotting Saw ........................................... 3-‐5
Center-‐Spot Drill ................................................. 3-‐5
Twist Drill ........................................................ 3-‐6
Tap ................................................................. 3-‐6
Reamer ............................................................. 3-‐7
Counterbore ........................................................ 3-‐8
Cutting Tool Fundamentals ........................................ 3-‐8
Rotational Direction .......................................... 3-‐8
Chip Formation ................................................ 3-‐8
Chip Load ..................................................... 3-‐9
Climb vs. Conventional Milling .............................. 3-‐9
Cutting Speeds and Feeds Formulas .............................. 3-‐10
Speed Formula ................................................. 3-‐11
Feed Formula .................................................. 3-‐12
Tap Feed Formula ............................................. 3-‐12
Speed/Feed Examples ............................................... 3-‐13
Milling Speed/Feed Example ................................... 3-‐13
Drill Speed/Feed Example ...................................... 3-‐14
Tap Speed/Feed Example ....................................... 3-‐15
Maximum Spindle Speed Example ................................ 3-‐16
Cutting Data ...................................................... 3-‐17
Best Practices Machining Parameters ......................... 3-‐18
Troubleshooting Speed/Feed Problems .......................... 3-‐19
Chapter 4: Coordinate Systems
Overview .......................................................... 4-‐3
Cartesian Coordinate System ..................................... 4-‐3
Number Line .................................................. 4-‐3
3D Cartesian Coordinate System ............................. 4-‐3
Quadrants ..................................................... 4-‐4
Units ............................................................. 4-‐5
Vertical Machining Center (VMC) Motion ......................... 4-‐5
CNC Motion Control ........................................... 4-‐6
CNC Machine Coordinates ...................................... 4-‐6
About Machine Home Position ................................ 4-‐7
Work Coordinate System (WCS) ................................... 4-‐8
WCS Example-‐1 ................................................ 4-‐9
WCS Example-‐2 ................................................. 4-‐10
WCS Example-‐3 ................................................. 4-‐11
Machine and Tool Offsets ........................................ 4-‐12
Machine Offset XY ............................................ 4-‐12
Machine Offset Z .............................................. 4-‐13
Tool Lenght Offset (TLO) .................................... 4-‐13
Chapter 5: CNC Programming Language
Overview .......................................................... 5-‐3
CNC Language and Structure ..................................... 5-‐3
Program Format ................................................ 5-‐4
CNC Editor ....................................................... 5-‐4
Alphabetic & Special Character Address Codes ................. 5-‐5
Alphabetic Address Code Definitions ........................ 5-‐5
G&M Codes ........................................................ 5-‐8
G-‐Codes ...................................................... 5-‐8
M-‐Codes ....................................................... 5-‐8
Select G-‐Code Definitions (Expanded) ...................... 5-‐9
Canned Cycles ..................................................... 5-‐10
Chapter 6: CNC Operation
Overview of CNC Setup and Operation .......................... 6-‐3
Machine and Tool Offsets ....................................... 6-‐5
Fixture Offset XY ........................................... 6-‐5
Fixture Offset Z ............................................ 6-‐6
Tool Length Offset (TLO) ................................... 6-‐7
Haas Control Face ............................................... 6-‐8
Haas Keyboard ................................................ 6-‐9
Start/Home Machine ................................................ 6-‐10
Load Tools ........................................................ 6-‐11
Set Tool Length Offset (TLO) ................................... 6-‐13
Set Fixture Offset XY ............................................ 6-‐17
Fundamentals of CNC Machining Set Fixture Offset Z ........... 6-‐21
Load CNC Program ................................................. 6-‐24
Run CNC Program ................................................... 6-‐26
Adjusting Diameter (CDC) Offsets ................................ 6-‐27
Shut Down CNC .................................................... 6-‐29
Chapter 7: 2D Milling Toolpaths
Overview ........................................................... 7-‐3
2D/3D/4X/5X Defined ............................................... 7-‐3
2D (Prismatic) Parts ......................................... 7-‐3
3D Parts ...................................................... 7-‐4
4-‐Axis Parts ................................................. 7-‐4
Standard CAD Views vs. CAM Views .............................. 7-‐6
CAD Features vs. Machining Features ............................ 7-‐6
Toolpaths by Type and Use ...................................... 7-‐7
2D Machining Features Example ............................... 7-‐8
2D Toolpath Terminology .......................................... 7-‐9
Facing ............................................................. 7-‐10
2D Contouring ..................................................... 7-‐11
Cutter Diameter Compensation .................................. 7-‐12
Pocketing ........................................................... 7-‐13
Slot Milling ...................................................... 7-‐14
Chamfer Milling ................................................... 7-‐15
Radius (Corner-‐Round) Milling ................................... 7-‐16
Center Drill ...................................................... 7-‐17
Drilling ........................................................... 7-‐18
Tapping ............................................................. 7-‐19
Chapter 8: CNC Turning
Overview ........................................................... 8-‐3
Lathe Components .............................................. 8-‐4
Spindle ........................................................ 8-‐5
Turret .......................................................... 8-‐6
Lathe Coordinate System .......................................... 8-‐8
Driven (Live) Tools ............................................... 8-‐9
Imaginary Tool Tip ................................................ 8-‐10
Part Datum ........................................................ 8-‐11
Tools and Tool Holders ........................................... 8-‐12
Chip Breaker .................................................. 8-‐12
Relief Angle .................................................. 8-‐13
Tool Cutting Angles .......................................... 8-‐13
Rake Angle .................................................... 8-‐14
Insert Designations ............................................... 8-‐15
Lathe Tool Types ................................................. 8-‐17
Face/Turn Tools ............................................... 8-‐17
Groove Tool ................................................... 8-‐18
Bore Tool ..................................................... 8-‐19
Thread Tool .................................................... 8-‐20
Cutoff Tool ................................................... 8-‐21
Cutting Speeds and Feeds ........................................ 8-‐22
Speed/Feed Example ............................................ 8-‐23
Cutting Feed Example ......................................... 8-‐24
Lathe Setup and Programming Example ............................ 8-‐25
Setup ........................................................... 8-‐26
Face ............................................................ 8-‐27
Rough ........................................................... 8-‐28
Finish .......................................................... 8-‐29
Groove ......................................................... 8-‐30
Thread .......................................................... 8-‐31
Drill .......................................................... 8-‐32
Bore ........................................................... 8-‐33
Cutoff .......................................................... 8-‐34
Fundamentals of CNC Chapter 9: 3D Toolpaths
Overview .......................................................... 9-‐3
3D Cutter Compensation ........................................... 9-‐3
Tolerances ........................................................ 9-‐4
3D Toolpath Setups .............................................. 9-‐6
3D Roughing ...................................................... 9-‐6
Parallel Finish .................................................. 9-‐7
Scallop Height ............................................... 9-‐8
3D Scallop ........................................................ 9-‐9
REST Milling ...................................................... 9-‐10
Pencil Toolpaths .................................................. 9-‐11
Conceptualizing 3D Toolpaths ..................................... 9-‐12
Chapter 10: Milling Setups
Overview ........................................................... 10-‐3
Fixture Components ................................................ 10-‐3
Subplates and Angle Plates .................................. 10-‐3
Clamps ......................................................... 10-‐4
Shoulder Bolts and Dowel Pins .................................. 10-‐5
Vise Accessories .................................................. 10-‐5
Hard Jaws ...................................................... 10-‐6
Soft Jaws ..................................................... 10-‐6
Appendix A: CNC Milling Work-‐Holding Examples
Project 1 : Install Vise ........................................ A-‐2
Project 2 : Install Vise Jaws ................................... A-‐4
Project 3 : Square Block ........................................ A-‐5
Project 4 : Contour Square Step ................................ A-‐13
Project 5 : Base ................................................. A-‐16
Project 6 : Housing ............................................. A-‐21
Project 7 : Fan Blades ......................................... A-‐23
Project 8 : Clamp ............................................... A-‐29
Project 9 : Fixture Plate ...................................... A-‐31
Project 10 : French Curve ...................................... A-‐33
Project 11 : Honeycomb ........................................... A-‐38
Project 12 : Bracket ............................................ A-‐40
Project 13 : Microwave Housing ................................. A-‐49
Project 14 : Geneva Gear ....................................... A-‐57
Appendix B: Alternate Tool Setting Methods
List of Common Methods ............................................ B-‐1
Using Paper ........................................................ B-‐2
1-‐2-‐3 Block on Finished Part Face ............................ B-‐3
1-‐2-‐3 Block and Dial Indicator ................................ B-‐4
Tool Probe ......................................................... B-‐4
Appendix C: CNC Process Planning Form
CNC Process Planning Form ....................................... C-‐1, C-‐2
Appendix D: G-‐M Code Reference
Milling G-‐ Codes ................................................ D-‐1
Milling M-‐Codes .................................................. D-‐2
Lathe G-‐Codes .................................................... D-‐3, D-‐4
Lathe M-‐Codes .................................................... D-‐4
Appendix E: Glossary
Glossary ............................................................. E-‐1, E-‐2
Appendix F: Drill Chart
Drill Chart ....................................................... F-‐1, F-‐2
Inch Pipe Threads ................................................. F-‐4
Metric Taps ....................................................... F-‐5
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