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Fundamental Tool & Die Making techniques

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Bend Radius
Deep Drawn
Fine Blanking
Progression strip layout

Slug pulling prevention
Tool die Design
Cutting clearance

Downloadable Ebooks

Tool die design booknd Fixture
Strip layout

Jigs and Fixture Design Book

Geometric Tolerances

ISO tolerance for shafts
ISO tolerance for holes
Surface Roughness
Surface Texture

Quality Control Co

Process Capability CPK
Sampling plan
AQL Level I, II, III


Inverted Die design

As with any other die design configuration, there must be reason for using inverted die design construction. Certain factors pertaining to die utility are inherently associated with inverted dies:

  1. Press cushion or other equipment mounted in the press bed do not interfere with piece part disposal.
  2. Pierce part may be produced which are too large to pass conveniently through the press bed or bolster plate.
  3. Higher degree of flatness require than if they are produced by blank through die
  4. Both pierced holes and Outer profile to be have the same burr direction.

iinverted die design

Ejection of piece part - Shedding or stripping

The piece part are expelled from the die opening by the stripper or shedder, the stripper or shedder may be either compression type or the positive knock out type.


Materials & Tretment

Annealing metal
Case hardening
Material density
Electrical Conductivity
heat treating steel


Equivalent and standards

Comparision table

Alu comparison table
Carbide equivalent chart
Carbon Steel
Copper alloy
Low alloys
Nickel alloys
Stainless Steel
Steel comparison table
Tool Steel equivalent
Tungsten Carbide
Wrought stainless Steel
Inch - metri Conversion Charts
Periodic Table of elements


Drill Angle
Drill size


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