SLIDE COMPONENT AND ITS MANUFACTURING METHOD

• Main Authors: SAWADA TAKASHI, HORIKIRIGAWA KAZUO, SHIBATA KEI, SATO TAKUO
• Format: Patent
• Language: English; Japanese
• Published: 21.07.2016
• Subjects: BEARINGS; BLASTING; BORING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; TURNING; WEAPONS

PROBLEM TO BE SOLVED: To provide a slide component and its manufacturing method having high abrasion resistance, low sliding resistance, and an excellent sliding property.SOLUTION: In a slide component 10 having a curved sliding face on its outer periphery, the sliding face 11 is composed of a processed face by lathe cutting processing while superposing ultrasonic wave to a cutting tool. A spiral continuous belt-like cutting mark is formed on the sliding face 11, and on the cutting mark, concavo-convex parts are repeatedly formed in a circumferential direction, that is, a cutting direction. By the ultrasonic lathe cutting method, even a material having high abrasion resistance but hard to be processed, can be comparatively easily processed with high accuracy, surface hardening processing by post-processing becomes unnecessary, and texture as an oil reservoir for reducing sliding resistance simultaneously with processing, can be formed with high controllability.SELECTED DRAWING: Figure 1 【課題】耐摩耗性が高く、摺動抵抗が低い、優れた摺動特性を示す摺動部品及びその製造方法を提供する。【解決手段】外周に曲面の摺動面を有する摺動部品１０において、摺動面１１は、切削工具に超音波を重畳させて旋盤切削加工した加工面により構成されている。摺動面１１には、螺旋状に連続する帯状の切削加工痕が形成され、この切削加工痕には、円周方向、すなわち切削方向に凹凸が繰り返し形成されている。超音波旋盤切削法によれば、耐摩耗性は高いが硬く加工が難しい材料であっても、比較的容易に高精度に加工することができるので、後処理による表面硬化処理が不要になり、且つ加工と同時に摺動抵抗低減のための油溜まりとなるテクスチャーを制御性高く形成することができる。【選択図】図１