Ultra-Deep-Drawn Fuel Injector Outer Sleeve

Case Review

This fuel injector outer sleeve is ultra-deep drawn from 304 stainless coil — draw, deep draw, redraw — then the mouth is turned with a chamfer. The 63.5 mm depth with 6.35 mm inner diameter makes wall-thickness and concentricity control the key challenge.

Part & Production Facts

• Application: fuel injector outer sleeve (automotive fuel injection)
• Process: stainless coil → deep drawing → redrawing → turned chamfered mouth
• Material: 304 stainless steel
• Dimensions: OD 7 mm, ID 6.35 mm, height 63.5 mm
• Surface: brightened; burr-free ends

Project Data

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