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Fundamental Tool & Die Making techniques


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Bend Radius
Deep Drawn
Fine Blanking
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Slug pulling prevention
Tool die Design
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Tool die design booknd Fixture
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Geometric Tolerances


GDT
ISO tolerance for shafts
ISO tolerance for holes
Surface Roughness
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Engineering Plastic
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Part II : Introduction to
Maximum and Minimum metal condition
Geometric tolerancing
MMC , LMC


MMC , Maximum metal condition

Maximum material condition ( MMC ) may be considers as the condition when the part weights the most. The MMC of a shaft is at the maximum size of the tolerance and the MMC of the hole is at the minimum size of the hole. For instance, the MMC of the hole of Dia. 4+/- 0.02 mm is Dia. 3.98mm. MMC of shaft of Dia.10 +0/-0.005 mm is Dia. 10.00 mm.


 

  LMC , Minimum metal condition

Least material condition ( LMC ) may be considers as the condition when the part weights the least. The LMC of a shaft is at the minimum size of the tolerance and the LMC of the hole is at the maximum size of the hole. For instance, the LMC of the hole Dia. 4+/- 0.02 is Dia. 4.02 mm. LMC of shaft Dia. 10+0/-0.005 is Dia. 9.995 mm.


 

Previous GDT >> Part III . Geometric Tolerancing basics

ISO Tolerance for shaft | ISO Tolerance for holes

 

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