What auto parts are made by metal stamping?

Metal stamping is the core manufacturing process for over 70% of automotive metal components. Utilizing blanking, bending, deep drawing, flanging, punching and progressive die forming, stamping produces lightweight, high-consistency auto parts covering body exterior, interior cabin, chassis, new energy high-voltage systems, engine auxiliary hardware and automotive electrical accessories. Major categories of stamped auto parts are sorted as follows:

1. Automotive Body Exterior Stamped Parts (Largest Batch)

These large thin-plate stampings adopt deep drawing and transfer die processes with high surface finish requirements:

Outer body panels: hood panels, front/rear door outer panels, roof panels, trunk lids, fenders, rear quarter panels

Outer decorative & protective parts: wheel covers, front/rear bumper metal brackets, grille inner frames, side skirt supports, mirror base shells

Structural crash components: anti-collision beams, crash energy-absorbing boxes, A/B/C pillar reinforcing plates, door anti-collision steel bars

2. Body Interior Stamping Components

Focused on assembly brackets and thin decorative shells, mostly low-carbon steel or galvanized steel stampings:

Door inner frames, door reinforcing plates, window lifter metal supports, door lock fixing brackets

Dashboard metal frames, instrument mounting brackets, glove box shells, central control fixed supports

Seat system parts: seat back frames, seat slide rails, seat hinge plates, headrest metal brackets

Trunk & cabin accessories: luggage compartment brackets, spare tire fixing plates, pedal base supports

3. Chassis & Suspension Stamped Parts

High-strength steel, aluminum alloy stampings bearing load and impact for EV and fuel vehicles:

Chassis subframe auxiliary brackets, suspension connecting plates, control arm reinforcement sheets

Battery tray shells & reinforcing ribs (new energy vehicles, aluminum alloy integrated stamping)

Shock absorber fixing supports, stabilizer bar clamps, wheel hub mounting gaskets, brake caliper brackets

Underbody protective covers, chassis splash guards, pipeline fixing clips

4. New Energy Vehicle Special Stamping Parts

Copper, aluminum and galvanized steel stampings for high-voltage power systems:

High-voltage copper busbars, battery connecting conductive sheets, terminal shrapnels

Charging gun metal shells, charging pile internal conductive components, inverter shielding covers

Battery module fixing brackets, aluminum cooling plates, insulation positioning gaskets

5. Engine & Powertrain Auxiliary Stampings

Small and medium thick steel stamped structural fittings:

Engine mounting brackets, oil pan reinforcement plates, valve cover metal clips

Radiator fixing supports, fan shroud frames, exhaust pipe clamps, heat shield shells

Transmission housing auxiliary brackets, gearbox positioning shims

6. Automotive Electrical & Electronic Stamped Parts

Thin brass, copper, stainless steel precision stampings for circuits and connections:

Wiring harness terminals, connector conductive shrapnels, relay contact sheets

Lamp internal brackets, headlight reflector bases, sensor fixing clips

Circuit shielding sheets, grounding copper sheets, switch elastic contact pieces

7. Small Hardware & Fastener Stamped Accessories

Mass tiny stampings produced by progressive dies:

All kinds of fixing clips, spring retainers, plastic part metal inserts

Decorative nameplate bases, rubber sleeve metal liners, sealing gaskets

1. GBT National Standard Citation

GB/T 30571-2014, General technical specifications for metal cold stamping parts[S]. Beijing: China Standards Press, 2014.

2. APA 7th Edition 

Zhang, H., & Su, L. (2024). Application of sheet metal stamping technology in complete automobile component manufacturing. International Journal of Automotive Technology, 25(3), 491–503. 

3. MLA 9th Edition 

Zhang, Hao, and Lin Su. "Application of Sheet Metal Stamping Technology in Complete Automobile Component Manufacturing." International Journal of Automotive Technology, vol. 25, no. 3, 2024, pp. 491–503,