Based on our previous discussion of the timeline and common machining problems associated with solution-treated stainless steel bolts with hot runners, the required special equipment is as follows:
High-Precision CNC Thread Lathe/Rolling Machine: Suitable for the relatively soft austenitic stainless steel after solution treatment, it can stably control 6H-grade thread accuracy, avoiding tool sticking and thread deformation springback issues.
Low-Temperature Cold Air Cutting System: Sprays -20℃ cold air during machining to lower the temperature of the cutting area, preventing the soft stainless steel from sticking to the tool and improving the surface finish of the thread.
Online Hardness Sorter: Quickly screens the hardness of the bolt after solution treatment before machining, rejecting workpieces with excessive hardness to avoid tool breakage and loss of thread accuracy control during machining.
Thread Go/No-Go Gauge + Image Measuring Instrument: Performs full inspection of thread dimensions after machining to ensure that the fit accuracy fully meets the standards, suitable for the precision installation requirements of hot runners. These devices can specifically address the processing challenges of stainless steel after solution treatment, which is relatively soft and prone to sticking to the cutting tool, ensuring the final processing quality of hot runner bolts.
