Deep Draw Stamping Process
Deep Draw Stamping Process
Deep-drawn metal stamping is a technique that uses metal dies to form metal sheets into specified design shapes. Unlike standard metal stamping, deep-drawing creates deep stampings with a depth measuring at least half of their diameter. As a cold-forming process, deep drawing alters the metal at room temperature, which results in more robust, more durable components.
The deep-drawing process makes various products ranging from kitchen sinks and fire extinguishers to baking pans, solenoids, assembly housings, and aluminum cans. These deep-drawn objects may be functional, decorative, or both, depending upon the application.
Metal drawing provides a cost-effective solution for a, hardware, HVAC, plumbing, and numerous other industries.
01 Determine Scope
Trans-Matic produces deep drawn parts up to 9.5” long (240mm), using materials from 0.004” (0.100mm) to 0.180” (4.5mm) thick.
02 Cutting Blanks
Every deep-draw stamping starts as a flat disc of sheet metal, blanked from coiled stock. Trans-Matic improves material utilization by staggering our blanks to reduce scrap and material costs. The deep-draw transfer stamping process minimizes waste, meaning your parts are made with the minimum amount of material required and you aren’t spending money on metal that ends up in the scrap bin.
03 Starting Cup
After cutting the blank at the first die station, the blank is cupped around the nose of a punch and pressed into a die to form a cup. This first deep-draw forming operation increases the strength of the part through work hardening.
04 Keep Drawing
Depending on your desired length-to-diameter ratio, Trans-Matic will design tooling with several draws to create the basic shape of your deep-draw parts. The forces produced in the deep-drawn stamping process naturally cause the shell wall to thin out, while the shell flange thickens at each stage. Our team designs tooling to stretch the metal as evenly as possible into the part’s intended shape.
05 Custom Features
Trans-Matic produces highly customized deep draw parts for our customers. We utilize in-die stations to manufacture a variety of features:
- Beading
- Burnishing
- Chamfering
- Coining
- Embossing
- Extruding
- Flange forming
- Ironing
- Marking
- Bottom piercing
- Multiple side piercing
- Reverse drawing
- Rib forming
- Shaped flange trimming
06 Not Just Thorough
Trans-Matic averages two imperfections per million. For us, excellence means working each day to lower that fraction just a little bit.
