Transcription of Selecting Materials for Punching and Forming Tools and the ...
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Selecting Materials for Punching and Forming Tools and the ...
Selecting Materialsfor Punching and Forming Tools and the Heat Treatment thereofGuide rails and brake dies03 Choosing economical steel does not in any way involve using the cheapest steel . It is far more important to select the most suitable material for the intended purpose. If the wrong material has been chosen, this often only emerges when the tool is in operational use, potentially resulting in significant extra costs. When Selecting a tool steel , it is impor-tant to keep in mind that the tool must not break during use or chip around the cutting edge. Similarly, permanent deformation and premature changes to the tool surface as a result of wear and tear or corrosion need to be excluded. steel availability should also be checked. Due to the cost situation, steel manufacturers are being forced to limit their product ranges. In recent years, however, various highly versatile tool steels have been developed, which enable tool steel portfolios to be restricted without compromising on technical properties.
these steel grades. Elements such as nickel and manganese also contribute to high hardness values across larger cross-sec-tions (through hardening). The effect of such elements is to make the steel grades slow to transform. In practical terms, this is benefi-cial because it means more mild quenching mediums (oil, air, salt bath) are suitable for
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