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American Made - Case Studies


Dec 23, 2021

Types of Die Construction


Stamping dies are classified by the type of construction of the dies are compound die, combination die and progressive die.

Compound Die

Compound dies produce very accurate parts, but their production rate is quite slow. These dies consist of a single station where the part is most often blanked out and either formed, embossed, pierced, or otherwise adjusted in a single stroke of the press. No progression of the strip is involved, as each strokes of the press produces a single complete part. Combination dies combine at least two operations during each stroke of the press. Some compound dies are used just for trimming others are specialized for blanking.

Combination Dies

Combination die combine at least two operations during each stroke of the press. Some shops, however, are making a distinction between the two types calling any cutting and forming die a combination die, while the compound die is considered only a cutting die. 

Progressive Die

A progressive die performs a series of fundamental sheet metal operations at two or more stations during each press stroke in order to develop a work piece as the strip stock moves through the die. The work piece on progressive dies travels from one station to another, with separate operations being performed at each station. Usually the work piece is retained in the stroke until it reaches the final station, which cuts off the finished piece. All stations work simultaneously at different points along the work strip, which advances on station at each stroke of ram. Thus a complete part is produced with each stroke. Progressive dies generally include blanking and piercing operations but a complicated progressive die can do the operation of bending, forming, curling and heading also. Each workstation performs one or more distinct die operation, but the strip must move from the first through each succeeding station to fabricate a complete part 

Die Materials

Tool steels are used to construct the die components in a variety of press working operations which is subject to wear. If it is heat-treated these steels develop high hardness level and abrasion resistance.

Category: General
Posted by: sheryl

Stamping dies are classified by the type of construction of the dies are compound die, combination die and progressive die.

Compound Die

Compound dies produce very accurate parts, but their production rate is quite slow. These dies consist of a single station where the part is most often blanked out and either formed, embossed, pierced, or otherwise adjusted in a single stroke of the press. No progression of the strip is involved, as each strokes of the press produces a single complete part. Combination dies combine at least two operations during each stroke of the press. Some compound dies are used just for trimming others are specialized for blanking.

Combination Dies

Combination die combine at least two operations during each stroke of the press. Some shops, however, are making a distinction between the two types calling any cutting and forming die a combination die, while the compound die is considered only a cutting die. 

Progressive Die

A progressive die performs a series of fundamental sheet metal operations at two or more stations during each press stroke in order to develop a work piece as the strip stock moves through the die. The work piece on progressive dies travels from one station to another, with separate operations being performed at each station. Usually the work piece is retained in the stroke until it reaches the final station, which cuts off the finished piece. All stations work simultaneously at different points along the work strip, which advances on station at each stroke of ram. Thus a complete part is produced with each stroke. Progressive dies generally include blanking and piercing operations but a complicated progressive die can do the operation of bending, forming, curling and heading also. Each workstation performs one or more distinct die operation, but the strip must move from the first through each succeeding station to fabricate a complete part 

Die Materials

Tool steels are used to construct the die components in a variety of press working operations which is subject to wear. If it is heat-treated these steels develop high hardness level and abrasion resistance.

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