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Investment Casting

Eccentric bearing

Stainless steel eccentric bearing is a precise, computer-automated manufacturing process using milling and tunning, wire-cut  to shape durable, corrosion-resistant components.

It typically involves specialized tooling (carbide/HSS) to handle high-strength, tough materials, requiring high-pressure coolant to manage heat, reduce work hardening, and prevent stringy chips, delivering high-precision components.

Key Aspects of Stainless Steel CNC Machining:

  • Common Alloys: Frequently machined grades include 303 (easy machining), 304 (versatile, good corrosion resistance), 316 (high corrosion resistance), and 17-4 PH (high strength).

  • Processes: Involves CNC milling (rotating tools), turning (rotating parts), drilling, and tapping to produce complex, high-strength parts.

  • Challenges: Stainless steel is prone to work hardening (becoming harder as it is cut) and produces long, stringy chips that can damage parts.

  • Techniques: High-pressure coolant is essential to break chips and cool the tool. Rigid fixtures are required to minimize vibration, as stainless steel can cause significant tool binding.

  • Tooling: Cemented carbide or high-speed steel (HSS) tools with specialized coatings are used to improve wear resistance.

  • Applications: Used across industries like Underwater pump system, medical devices, aerospace, food & beverage, and robotics. 

Common Post-Processing:

  • As Machined: Standard finish.

  • Bead Blasting: Creates a smooth, matte finish.

  • Passivation: Improves corrosion resistance by removing surface iron.

  • Powder Coating: Adds color and extra protection


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