SGS Certificated Deep Drawn Metal Stamping

Sheet metal stamping deep drawing and polishing metal stamping parts

Deep drawing metal stamping production process

Deep-drawing die refers to the process of forming a metal sheet into a cavity under compression and stretching conditions to produce a closed bottom, round or irregular shaped cup or cylinder. It should not be confused with stretch forming. When the material is dragged onto the mold radius and down into the mold, it is actually forced into a plastic state. The compression process is completed under calculated and strictly controlled conditions, including blank clamping pressure, punch and die radius, punch speed and lubrication.

The end result is a hollow container, which can be cylindrical or square/rectangular in nature. The size of deep-drawn products varies from very shallow ones requiring one stretching operation to very deep ones requiring multiple stretching and re-stretching operations. Deep-drawn parts have a wide range of uses, and can be used in various industries such as electronics, automobiles, refrigeration, plumbing and lighting. The deep-drawn items include component shells, industrial tanks, pressure vessels and fire protection devices.

Benefits of deep drawing metal stamping

For products that require a waterproof or airtight shell (no joints), high strength and light weight, deep drawing stamping is the best choice. Generally, this is the most effective way to form products with unconventional or difficult geometries.

In terms of production, deep drawing metal stamping has many advantages:

Growth rate. The stretching speed is only limited by the required contact speed of the material. If multiple stretches are required to produce the final stretch, they can be performed simultaneously at the transfer or progressive die station to optimize the cycle time. If you have a lot of demand and want to reduce costs, then these fast cycle times are an effective method.

cut costs. In addition to the productivity savings mentioned above, the cost of molds used for deep drawing is also lower, usually only a set of very durable and renewable simple mold steel or cemented carbide molds, thereby reducing the demand for molds.

Maintain tolerances. The deep drawing process is extremely repeatable, once set up, thousands of parts can be produced within tight tolerances.
Rugged parts. Unlike casting or machining, rolled metal has a slender and cohesive grain structure. Due to the nature of the deep drawing process, the structure flows uninterrupted throughout the deep drawing part, thus forming a very strong finished product.

The diversity of metals. Various metals can be deep drawn, providing many manufacturing options. The most common metals include mild steel, stainless steel, aluminum, copper and brass. An experienced die should be able to help select the best material or alloy for your application.

Deep drawing metal stamping parameters

Below is some questions you may want to know:

Questions: How to know the chemical composition of stainless steel deep drawing parts according to our requirements?

Answers: When we offer samples or batch parts, we will also send you our material list from our material factory, it shows more detailed.

Questions: How to guarantee your final size can meet our drawing request?

Answers: we will make moulds according to your 3D drawing. And we also do sampling when batch production start, to make assure the final dimension can meet your request.

Questions: How to make sure the color after painting or powder coating can be correct?

Answers: We have color card with different color number, such as RAL9016, we will contrast the sample surface and color card, to make sure the final surface effect is correct.

Questions: Generally, how do you packing the goods?

Answers: normally, for inner package: the goods is nude, for outer package: carton + plywood. If you have special request for inner or outer package, pls indicate it when you send us new inquiry.

Questions: If we find the defect products exist in the batch parts, how to do?

Answers: Yes,your caution is very good, in fact, when batch production, we need do sampling. Before shipment, we also do testing to make sure the quality is ok. If you found several defect product exists, pls take photos and send your quality feedback, we will check and send you quality products. But pls be assured that our products is qualified, unless caused by the worker's mistake to place.