A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. ... These rigid machine tools remove material from a rotating workpiece via the (typically linear) movements of various cutting tools, such as tool bits and drill bits.
The build-up is a surfacing variation in which surfacing material is deposited to achieve required dimensions. The term build-up denotes the addition of weld metal to a base metal surface, the edge of a joint, or previously deposited weld metal for the restoration of the component to the required dimensions.
An insert formed of carbon or other nonmetallic material which retains its shape when subjected to welding temperatures and which will not bond to weld material is provided having length and width dimensions corresponding to the final desired configuration of the restored keyway.
Grinding is an abrasive machining process that uses a grinding wheel as the cutting tool. A wide variety of machines are used for grinding: Hand-cranked knife-sharpening stones (grindstones) Handheld power tools such as angle grinders and die grinders.
Hardfacing is a metalworking process where harder or tougher material is applied to a base metal. It is welded to the base material, and generally takes the form of specialized electrodes for arc welding or filler rod for oxyacetylene and gas tungsten arc welding (TIG) welding.
A brass bearing, also known as a brass bushing, is a mechanical element used to reduce friction between rotating shafts and stationary support members. Typically, a bushing relies on soft metal or plastic and an oil film to support the rotating shaft on the hardened shaft journal.
Stud or pin welding is a highly versatile process for attaching fastenings to metal sheets. Using weld studs or pins, operators can automatically or manually form welds of superior strength. As a result, there are many stud and pin welding applications available.