Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
When using cast metal, cast steel, or heat resistant cast alloy steel ,no void, internal cracks, or no non-metallic inclusions may exist because cracks may start from those areas during the TRD process. This is especially true of cast tool steel because the substrate needs to be hardened at the same time.
