Deep drawing stamping process and application analysis of different materials!

Deep drawing stamping is a special stamping method. The principle is to apply external force to the sheet, strip, pipe and profile by press and die to make plastic deformation or separation, so as to obtain the workpiece of the desired shape and size (Stamping). However, deep drawing stamping is still quite different from common continuous stamping and metal blanks.

Deep drawing process tooling

The first is the mold. The mold consists of a punch and a die. One station has a pair of molds, generally up to 18 stations. When designing the mold, it is usually considered to use all the stations, which makes the molding of each step more stable. Out of the product is better

sheet metal deep drawing tooling

Followed by the strip, the deep drawing process without conveyor. The product is stored in the mold separately. It can be transferred between the stations by the built-in robot. It can be reversed arbitrarily, which allows us to form relatively complex shapes. Such as: thread, side holes, side grooves, reverse stretching of the end face, etc., can produce a variety of products.

Compared with machined parts, cast parts, molded parts and ordinary stamping metal parts, it has obvious advantages of saving material cost, reducing waste, reducing assembly cost and time, and improving the product’s external structure to meet requirements and retain its own strength. The use of raw materials minimizes scrap rates.

continuous stamping mold

Analysis of deep drawing applications with different materials

1. Low carbon steel deep drawing stamping

A.    Low carbon steel Deep drawing Material characteristics:

Excellent formability (depending on material grade), high strength, light weight, cost-effective than other stretch materials, stable dimensional stability, low corrosion resistance, and need for post-treatment protection such as electroplating. Commonly used in various parts of automotive manufacturing, especially high-strength structural parts.

B.    Low carbon steel material Impact on the stretch stamping process:

Rich in material procurement resources

Low tonnage machines are available (depending on material grade)

Good dimensional stability after molding

Particularly suitable for welding

There are different coatings in the raw material category, which eliminates the need for subsequent surface treatments such as plating

The molded product has a certain shelf life, depending on its corrosion resistance.

low carbon steel deep drawing
C. Our commonly used low carbon steel materials in deep drawing process

1008 low carbon steel HSLA Grade 50 low carbon steel

1010 low carbon steel HSLA Grade 80 low carbon steel

DC03 / DC04 B340LA / B410LA


2, Stainless steel deep stamping

stainless steel deep drawing
A. Stainless steel Material deep drawing characteristics:

High strength, light weight, high corrosion resistance, suitable for heat treatment, good wear resistance and no need for plating protection.

Commonly used in fuel supply systems, brake systems, exhaust systems, oxygen sensors and decorative components in automotive manufacturing.

B. Stainless steel Impact on the Deep drawing stamping process:

Large tonnage machines are required compared to other materials

Larger wear on the mold during stretching

Material prices are more expensive

Good dimensional stability after molding (/-0.02mm)

Hardening and resilience of the material during stretching

It is difficult to form the material during stretching and it is difficult to control the wall thickness of the product. It requires an experienced molder.

C. Our commonly used stainless steel DEEP DRAWING materials:

304(L) stainless steel

305 stainless steel

310 stainless steel

316 stainless steel

410 stainless steel

430 stainless steel

3, Aluminum alloy DEEP DRAWING stamping

Aluminum deep drawing
A.    Aluminum Material characteristics with deep drawing

Light weight (about 1/3 of low carbon steel), high strength, non-magnetic, no rust, suitable for heat treatment, can be anodized to prevent corrosion.

It is commonly used in heat dissipation devices, energy storage devices (such as batteries), beverage containers and the pharmaceutical industry in automotive manufacturing and other industries.

B. Alu material Impact on the deep stamping process:

Compared with other materials, low-tonnage machines can

Larger wear on the mold during stretching

Good dimensional stability after molding (/-0.04mm)

Easy to form and low resilience

The material does not easily harden when stretched

Aluminum alloy deep drawing is achievable for forming inconsistent wall thicknesses

C. Our commonly used aluminum alloy materials for deep drawing

3003 aluminum alloy

5052 aluminum alloy

6061 aluminum alloy

4. Copper alloy deep stamping

copper deep drawing
A.    Copper Material characteristics for deep drawing:

Anti-corrosion, easy oxidation (surface discoloration and stain), expensive and unstable, easy to weld.

B. Copper material Impact in the deep stamping process:

Machine tonnage similar to mild steel

Material ductility is very good

Due to the high price, the utilization of materials and the recycling of waste are very important.

Good dimensional stability after molding (/-0.04mm)

For alloys with inconsistent wall thickness, copper alloy stretching is achievable

C.  Our commonly used copper alloy materials for deep drawing

C22000 copper alloy

C26000 copper alloy

C28000 copper alloy

C52100 copper alloy

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