Actually, the surface of the imitation tool is distributed, the size of the micro-convex body is unequal, and the surface of the imitation tool is unequal, and the surface of the imitation tool is a micro-convex body. Under the condition of free lubrication, the work is basically done on the surface of the imitation tool. For this purpose, the lubricant is lubricated, the fluid is lubricated, the fluid is lubricated, and the fluid is lubricated.

 

Medium friction (secondary) main finger metal shavings or work giving upper and lower imitation friction, polishing main measure research imitation polishing. Metal-thermal friction science Special conquest, thermal, comparative metal hair, or work temperature comparison low (phase-to-heat metal), metal-hard metal model, phase-to-slip (metal flow) friction, in fact, contact surface Friction secondary; Under non-lubricating conditions, hardened imitation tool, two kinds of metal surface oxidized film, contact friction; during the process of transformation, the surface of the new metal, the surface of the new metal, the short time, and the return Under the conditions of oxidation, maximum absorption of the metal, maximum load, or high temperature, the friction and friction are insufficient, and the approximate rate of work is large. The universal existence of heat, uneven shape, poor lubrication or poor lubrication. In addition to this, forging load forging, normal mechanical load, cause of mechanical load, sub-phase ratio, forging process, unique friction science special conquest.

 

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