Metal object and manufacturing method thereof having solid lubricating surface layer
AssigneeMetal Industries Research & Development Centre
InventorsTseng-Jen Cheng, Kai-Han Chen, Fu-Chuan Hsu, Chih-Hao Lin
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Abstract
A method for manufacturing a metal object having a solid lubricating surface layer includes: providing a metal blank having a surface; providing a plurality of microparticles and solid lubricating powder, and mixing them together, wherein the microparticles have a hardness greater than that of the surface; and projecting the microparticles and the solid lubricating powder onto the surface, wherein the microparticles cause plastic flow on the surface to form a compressive stress layer, and the solid lubricating powder adheres to the compressive stress layer to form a solid lubricating surface layer.
Claims6
A method for manufacturing a metal object having a solid lubricating surface layer, comprising the following steps of:
- providing a metal blank having a surface;
- providing a plurality of microparticles and solid lubricating powder, and mixing them together, wherein the plurality of microparticles have a hardness greater than that of the surface;
- and
- projecting the plurality of microparticles and the solid lubricating powder onto the surface, wherein the plurality of microparticles cause plastic flow on the surface to form a compressive stress layer, and the solid lubricating powder adheres to the compressive stress layer to form a solid lubricating surface layer;
- wherein the plurality of microparticles is made of a zirconia ceramic material having a diameter between 10 μm and 30 μm, and the compressive stress layer has a thickness between 5 μm and 20 μm;
- and
- the solid lubricating surface layer is made of tungsten disulfide having a diameter between 0.5 μm and 5 μm, and the solid lubricating surface layer has a thickness between 0.1 μm and 1 μm.
Dependencies are inferred from the claim text.