SQM manufactures precision gears through advanced powder metallurgy, offering a cost-effective solution for complex geometries and high-volume production. Using pre-alloyed or diffusion-bonded metal powders, gears are compacted in high-precision dies and sintered at temperatures between 1120°C and 1300°C in controlled atmospheres to ensure high density and uniform material structure. This process allows for the creation of detailed features, such as internal splines, undercuts, and oil channels, without the need for extensive post-machining.
For applications requiring enhanced surface properties, additional operations like carbonitriding, steam treatment, or resin impregnation can be applied to increase wear resistance and fatigue strength. Gear profiles can be finished by repressing or grinding to meet DIN or AGMA standards, with tolerances as tight as ±0.02 mm.
Each part undergoes dimensional inspection, hardness testing, and metallographic analysis, ensuring compliance with ISO 9001 and IATF 16949 requirements. This makes sintered gears an ideal choice for automotive transmissions, power tools, e-mobility systems, and other high-load, high-precision applications.
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