Abstract: A problem is to provide a sliding member capable of easily improving friction characteristics, and a production method therefor. A solution is a sliding member 10, wherein a sliding portion 11 is formed of a metallic material, and the sliding member 10 has, on a surface of the sliding portion 11, a Cr-containing modified layer 12 formed by blasting a shot media containing Cr as a composition. The sliding member 10 slides under an environment of a lubricant containing Mo as an additive, in which active Cr exposed on the surface by sliding accelerates decomposition reaction of the additive contained in the lubricant to form a molybdenum disulfide-containing film having low friction on the surface of the sliding portion 11.

Abstract: An objective of the present invention is to provide an innovative method for surface-treating a forging member, the method exhibiting unprecedented operations and effects. The present invention is a method for surface-treating a forging member (1), wherein a slurry (4) comprising a mixture of a liquid (2) and an abrasive (3) is mixed with pressurized air and sprayed on a surface (1a) of the forging member (1), and innumerable recesses (5) measuring 0.5-2.00 ?m in depth and 75-150 ?m in opening width are provided on the surface (1a) of the forging member (1).

Abstract: An object of the present invention is to provide a revolutionary support material removing method which exhibits operational effects not seen in conventional practice. The present invention is a support material removing method for removing a support material (2) located on a surface (1a) of a three-dimensional object (1) molded by a three-dimensional forming device, wherein a slurry (5) which is a mixture of a liquid (3) and abrasive grains (4) is sprayed from a slurry sprayer (6) to remove the support material (2).

Abstract: An object of the present invention is to provide a revolutionary support material removing method which exhibits operational effects not seen in conventional practice. The present invention is a support material removing method for removing a support material (2) located on a surface (1a) of a three-dimensional object (1) molded by a three-dimensional forming device, wherein a slurry (5) which is a mixture of a liquid (3) and abrasive grains (4) is sprayed from a slurry sprayer (6) to remove the support material (2).

Abstract: Improvement in a method of surface-treating a back plate for friction material by blasting slurry containing particles made of plastic material through high pressure air to obtain desired surface roughness constantly for a long period of time. In the present method, no alumina grinding particle but particles made of stainless steel or titanium are fed into slurry, and the slurry is blasted through high pressure air to surface-treat the back plates. Stainless steel or the like strike works to make the surface thereof rough, which does not cause the stainless steel particles or titanium particles to be broken, unlike the grinding particles, so that the amount of sludge generated is reduced, resulting in longer life of the slurry.