Stainless steel Deep drawn housing

Stainless steel Deep drawn housing

Deep drawn housing

Deep drawing is a sheet metal forming process in which a sheet metal blank is radially drawn into a forming die by the mechanical action of a punch.[1] It is thus a shape transformation process with material retention. The process is considered “deep” drawing when the depth of the drawn part exceeds its diameter. This is achieved by redrawing the part through a series of dies. The flange region (sheet metal in the die shoulder area) experiences a radial drawing stress and a tangential compressive stress due to the material retention property. These compressive stresses (hoop stresses) result in flange wrinkles (wrinkles of the first order). Wrinkles can be prevented by using a blank holder, the function of which is to facilitate controlled material flow into the die radius.

Stainless steel Deep drawn housing

1. Material
No. Material Description
1.1 Mild steel,stainless steel,aluminum alloy,galvanized steel,or custom,etc.
2. Product size and tolerance
No. Specification Size Tolerance
2.1 Length (mm) 20,50,60 or custom ±0.2
2.2 Wall Thickness (mm) 0.25,0.3,0.35,0.5 or custom ±0.02
2.4 Outer diameter (mm) 20,50,60 or custom ±0.1
3. Surface finish and other properties
No. Item Description
3.1 Surface finish Powder coating,glavanization coating,electrophoretic treatment,etc.
32 Surface roughness (Ra) As per customer’s requirements
3.3 Manufacturing Process Brief Material preparation→Deep drawing →Reshaping→Surface treatment

Packaging & Shipping

4. Packing,Shipping and others
No. Item Stainless steel Deep drawn housing
4.1 Packing To be packed in wooden crate with protection film
4.2 Marking Each box to be legibly marked with the name of the manufacturer or supplier, the designation of material,condition,dimensions and weight
4.3 Shipping tools Ship goods by van to departune port then by sea to desitination port

Quality management and spot management

No. Item Stainless steel Deep drawn housing
5.1 Quality control 1. Quality assurance
a. Incoming material quality assurance; b. Process quality assurance; c. First sample quality assurance; d. Final quality assurance.
2. Process management-The right results are from the right process
a. Production process card control; b. Standard operational procedure;c.Job certification;d. Quality chart monitor.
3. Equipment and facility management
a. Periodic maintenance; b.Preventative maintenance.
4. Mold management
a. Mold life management; b.Periodic and preventative maintenance; c. Periodic inspection.
5.2 Inspection Tools Altimeter,Vernier caliper,Micrometer,3D coordinate measuring instrument
5.3 Spot management “5S” management (sort,set in order,shine,standard,sustainable).