Stainless Steel Stamping Parts Processing

　　Stainless steel stamping parts processing is a specialized manufacturing technique used to shape stainless steel sheets or coils into precision components via operations like punching, bending, deep drawing, embossing, and trimming. Stainless steel is a preferred material for stamping due to its exceptional corrosion resistance, high strength, and durability—making it suitable for parts used in harsh environments (e.g., marine, chemical processing) or critical applications (e.g., medical devices, food equipment). However, its high hardness and work hardening tendency (especially austenitic grades like 304, 316) present unique challenges, requiring specialized equipment, tooling, and process parameters to ensure quality and efficiency.

　　The stainless steel stamping process typically consists of five key stages: material preparation, blanking, forming, finishing, and quality inspection. Material preparation involves selecting the right stainless steel grade (based on part requirements) and cutting the material into sheets or coils of the required size. Common grades used for stamping include:

　　304 (AISI 304): Austenitic stainless steel (18Cr-8Ni) with high ductility and corrosion resistance—ideal for food-grade parts (e.g., kitchen sinks, dairy equipment) or decorative components.

　　316 (AISI 316): Austenitic stainless steel (18Cr-10Ni-2Mo) with enhanced corrosion resistance (especially to saltwater)—used for marine parts, chemical processing equipment, or medical devices.

　　430 (AISI 430): Ferritic stainless steel (17Cr) with lower cost and moderate corrosion resistance—suitable for non-critical parts like automotive trim or appliance panels.

　　Blanking is the initial stage where the stainless steel sheet is cut into a “blank” (the basic shape of the part) using a punch and die. Due to stainless steel’s high strength, blanking requires high stamping forces (20–50% more than low-carbon steel) and wear-resistant tools (e.g., cemented carbide punches or cold work tool steel dies with TiN/TiCN coatings to reduce friction). Die clearance is critical—typically 8–12% of the material thickness (vs. 5–10% for carbon steel)—to prevent burrs and tool wear. For example, blanking a 2mm-thick 304 stainless steel sheet to create a sink blank requires a hydraulic press with a 300 kN force capacity and a carbide punch with a polished cutting edge.

　　Forming is the core stage where the blank is shaped into the final part via operations like bending, deep drawing, or embossing. Stainless steel’s work hardening (increased hardness during deformation) requires careful process control to avoid cracking:

Read recommendations:

Sealing ring Precision electronic parts

Housing components for recessed downlights Precision electronic parts

Oval Magnetic Hardware Precision electronic parts

CNC Machining Dimension Accuracy

CNC processing factory - Meeting customers' strict requirements for precision