PROCESS PLANNING AND COST ESTIMATION
- 2. • UNIT I INTRODUCTION TO PROCESS PLANNING • UNIT II PROCESS PLANNING ACTIVITIES • UNIT III INTRODUCTION TO COST ESTIMATION • UNIT IV PRODUCTION COST ESTIMATION • UNIT V MACHINING TIME CALCULATION
- 10. Computer Aided Process Planning
- 11. Retrieval (or variant) CAPP System
- 14. Selection of Process planning system Major factors to be considered while selecting the best process planning system are: i. General Environment ii. Organisational Structure iii. Technical Expertise iv. Needs and Objectives of the company
- 16. The following information can be obtained from the interpretation of an engineering drawing: i. Material of the product ii. Number of parts to be produced iii. Weight of the component iv. Dimensions of the parts v. Dimensional and geometric tolerances vi. Size and Accuracy
- 19. 1.1) SINGLE –PART DRAWINGS
- 20. 1.2) COLLECTIVE SINGLE –PART DRAWINGS
- 22. 2.1) SINGLE –PART ASSEMBLY DRAWINGS
- 23. 2.2) COLLECTIVE ASSEMBLY DRAWINGS
- 25. INFORMATION IN THE DRAWING SHEET REQUIRED FOR PROCESS PLANNING • DIMENSIONS
- 26. • MATERIAL SPECIFICATION • SPECIAL MATERIAL TREATMENTS
- 27. • TOLERENCES, LIMITS AND FITS
- 28. • SURFACE FINISH
- 31. Material Evaluation Method 1. Shape or Geometry Consideration 2. Material Property Requirements 3. Manufacturing Considerations
- 32. Shape or Geometry Consideration Some of the important shape or Geometry considerations are: • Relative size • Complexity • Dimensional Tolerance • Surface Finish • Allowances • Design for Assembly • Design for Manufacturability
- 33. Some raw materials forms for common manufacturing processes
- 34. Material Property Requirements i. Mechanical Properties ii. Physical Properties iii. Service Environment Manufacturing Considerations • Standard Components • Ease of Manufacture • Quantity and rate of components • Minimum and Maximum • Level of Quality • QA and Inspection Requirements • Ease of Assembly
- 41. Factors considered for machine selection
- 48. Steps in Machine Selection
- 49. Factors in tooling selection • Manufacturing practice • Manufacturing process • Machine tool characteristics • Capability • Processing time • Cutting tool availability
- 53. Operating requirements for tool selection • Workpiece material • Operation • Part geometry • Tooling data
- 56. Factors affecting tooling performance • Cutting tool materials • Cutting tool geometry • Cutting fluids