Lesson 63 of Industrial Engineering ONLINE Course
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https://www.youtube.com/watch?v=qx_qqVmjCc0
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1. Choose Materials for Optimum Machinability
Order of decreasing machinability
1. Magnesium alloys
2. Aluminum alloys
3. Copper alloys
4. Cast irons
5. Ductile irons
6. Carbon steels
7. Low alloy steels
8. Stainless steels
9. Hardened and high alloy steels
10. Nickel-based superalloys
11. Titanium
12. Uranium alloys
2. Minimize the number of machined features.
3. Minimize machined stock allowances.
Most machined features require roughly 1.5 mm of stock for roughing and finishing in two passes.
When standard sizes available from the market, for example cold rolled bars are used, the finish diameter of the part should be roughly 1.25 mm smaller than the diameter of the standard bar (think of machining allowance of 1.25mm for getting the surface finish required and the geometric and dimensional tolerances.
4. Optimize Dimensional and Surface Finish Tolerances
5. Standardize Features.
6. Minimize the Number of Machined Orientations
7. Provide Adequate Accessibility
8. Provide Adequate Strength and Stiffness
9. Provide surfaces for Clamping and Fixturing
Chapter 4.1: Designing for Machining: General Guidelines
https://www.globalspec.com/reference/58154/203279/chapter-4-1-designing-for-machining-general-guidelines You can read more excerpts from the book from this link. Visit definitely.
17 Tips for Designing Cost Effective Machined Parts
Hailey Kupiec, May 25, 2016
Machining tips from an online engineering community.
https://www.engineering.com/AdvancedManufacturing/ArticleID/12216/17-Tips-for-Designing-Cost-Effective-Machined-Parts.aspx
Book Chapter: Design for Machining, Knight, Boothroyd
https://books.google.co.in/books?id=Y0cRCFalmekC&pg=PA439#v=onepage&q&f=false
____________
https://www.youtube.com/watch?v=qx_qqVmjCc0
____________
1. Choose Materials for Optimum Machinability
Order of decreasing machinability
1. Magnesium alloys
2. Aluminum alloys
3. Copper alloys
4. Cast irons
5. Ductile irons
6. Carbon steels
7. Low alloy steels
8. Stainless steels
9. Hardened and high alloy steels
10. Nickel-based superalloys
11. Titanium
12. Uranium alloys
2. Minimize the number of machined features.
3. Minimize machined stock allowances.
Most machined features require roughly 1.5 mm of stock for roughing and finishing in two passes.
When standard sizes available from the market, for example cold rolled bars are used, the finish diameter of the part should be roughly 1.25 mm smaller than the diameter of the standard bar (think of machining allowance of 1.25mm for getting the surface finish required and the geometric and dimensional tolerances.
4. Optimize Dimensional and Surface Finish Tolerances
5. Standardize Features.
6. Minimize the Number of Machined Orientations
7. Provide Adequate Accessibility
8. Provide Adequate Strength and Stiffness
9. Provide surfaces for Clamping and Fixturing
Chapter 4.1: Designing for Machining: General Guidelines
https://www.globalspec.com/reference/58154/203279/chapter-4-1-designing-for-machining-general-guidelines You can read more excerpts from the book from this link. Visit definitely.
17 Tips for Designing Cost Effective Machined Parts
Hailey Kupiec, May 25, 2016
Machining tips from an online engineering community.
https://www.engineering.com/AdvancedManufacturing/ArticleID/12216/17-Tips-for-Designing-Cost-Effective-Machined-Parts.aspx
Book Chapter: Design for Machining, Knight, Boothroyd
https://books.google.co.in/books?id=Y0cRCFalmekC&pg=PA439#v=onepage&q&f=false
DFMA - Design for Machining - Summary Notes
Ud. 2.8.2022
Pub 19.7.2020
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