The integral crankshaft is produced by hot forging of this steel ingot for forging.
The ingot is subjected to hot forging.
Alternatively hot forging elements is described.
Conventionally, in hot forging of a valve umbrella portion of a hollow engine valve, poor finish accuracy has been provided, and in cold forging thereof, materials which can be used have been restricted.
A substantially lead-free lubricant for use in hot forging of metals, especially forging of aluminum and aluminum alloy components.
Disclosed is a pure copper plate production method wherein post-hot-forging and post-hot-rolling cold forging and cold rolling, and subsequent heat processing are unnecessary.
The invention relates to a forging mandrel for hot-forging tubular workpieces of metal, said mandrel comprising a mandrel body and a mandrel bar, in which forging mandrel the mandrel body is composed of a heat-resistant material.
The present invention provides a hot-forging method and a cold-forging method for manufacturing an article having a thinner body and a thicker body.
The sheet material may be produced by cold-pressing and rolling an ingot in place of the billet without hot-forging.
It can be formed by die-casting, chill casting, warm-pressing and hot-forging.
Each stage of the multistage processing includes a heating event, a hot-forging event, and a water quenching event.
A method of improving the life of a die for use in the hot or warm forging of a steel.