Outer diameter is 490mm with tolerance +/-0.05,
Inner diameter is 470mm with tolerance +/-0.05,
In order to avoid the ring out-of-round during machining, several fixture gauges were designed. Finally get very good quality finished parts, run-out and concentricity are within 0.05.
Why is solution treatment necessary for stainless steel, and why are more and more products now requiring solution treatment?
Solution Treatment of Stainless Steel To understand why stainless steel requires solution treatment, we first need to clarify the purpose of solution treatment, its functions,