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A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required. The jig grinder is very similar to a jig borer, in that the table positioning and spindles are very accurate (far more so than a manual milling machine or lathe). It is used almost exclusively by tool and die ...
The company began as Moore Drop Forging Company in Springfield, Massachusetts in 1900 [1] or 1901. [2] In 1938 Moore became a vendor for Sears Roebuck . [ 1 ] In 1967, Moore Drop Forging was acquired by Eastern Stainless Steel Corporation , a manufacturer of stainless and specialty steel .
Often a jig is hardened; for a jig borer this requires the material to be bored first and then hardened, which may introduce distortion. Consequently, the jig grinder was developed as a machine with the precision of the jig borer, but capable of working materials in their hardened state. [2] A DeVlieg 43K-48 Jig Mill.
Rotating abrasive wheel on a bench grinder. Pedal-powered grinding machine, Russia, 1902. A grinding machine, often shortened to grinder, is any of various power tools or machine tools used for grinding. It is a type of material removal using an abrasive wheel as the cutting tool. [1]
John Bradford Moore (1855–1926) [1] was a trader who established a post at Crystal, New Mexico, at the western end of the Narbona Pass, where he developed the manufacture of Navajo blankets for sale in the United States.
Working from engineering drawings developed by the toolmaker, engineers or technologists, tool makers lay out the design on the raw material (usually metal), then cut it to size and shape using manually controlled machine tools (such as lathes, milling machines, grinding machines, and jig grinders), power tools (such as die grinders and rotary tools), and hand tools (such as files and honing ...