Application Background
Powder metallurgy is a technology that uses metal powders (or mixtures of metal and non-metal powders) as raw materials to manufacture metal materials, composites, and various products through forming and sintering processes. Parts made by powder metallurgy feature high material utilization rates. By adjusting powder composition, particle size, and preparation processes, material properties can be precisely controlled to meet special performance requirements in different fields, such as high strength, high hardness, high temperature resistance, and corrosion resistance. Typical applications include valve seats, valve guides, piston rings, certain gears in automotive transmissions, synchronizer hubs in automobile engines, as well as turbine disks and blades in aero engines.
Solution Analysis
◎ In this case, the cam disc parts are made of powder metallurgy material. The inherent porosity and uneven density hard spots formed during the pressing and sintering process lead to rapid tool wear. Therefore, Worldia’s customized inserts improve tool life by selecting the PN317 Grade with excellent wear resistance and toughness, and increasing the nose radius to reasonably enhance edge strength.
◎ In addition, due to the surface roughness requirement of Ra 0.8, which is difficult to achieve with conventional tools on powder metallurgy materials, Worldia’s tooling solution adopts a wiper non-standard edge design. This provides a sharp cutting edge while also achieving a superior finishing effect, resulting in higher surface quality under the same cutting depth, spindle speed, and feed rate.
◎ Worldia’s customized tooling solution comprehensively improves the overall performance of the tool by scientifically selecting the most suitable insert grade, optimizing edge parameters tailored to the working conditions, and applying high-performance coating technology. This helps customers extend tool life, reduce tool changes and downtime, improve machining efficiency, lower unit costs, and ultimately enhance product competitiveness.