Tool Bits and Machining parameters for thermal Spray Coating

摘要

The most commonly used hardware is either a carbide insert or a brazed cemented tungsten carbide tool bit. (Examples would be Valenite~R CNMG 432 carbide insert or a Kennametal~R K68). The object is to strive for low co-efficient of friction and high heat resistance in your selected tool bits. Additionally high abrasion resistance in the tool bit material is very important. Rake: The tool bit can be directly on center, perpendicular (to the part) and a slight positive rake (typical = 3 deg, maximum = 8 deg) can be used for finer finishes.