Honing Machine

a metal-cutting machine for finishing (honing) the surfaces of parts. The basic variations for the design of a honing machine are as follows: (1) the part moves along nonrepeating paths relative to the flat (or shaped) surface of a stationary honing plate (or two plates, if the part is held between them); (2) the plate (or two plates) moves in a similar manner relative to the stationary part; (3) the part moves relative to the rotating disk (lapping tool). A finegrained abrasive powder or lapping paste is applied between the part and the plate (or disk), and the substances abrade the surface being honed. Several parts may be worked simultaneously on a honing machine.

a grinding and lapping machine tool used for honing. Honing machines include vertical, horizontal, and inclined configurations, single-spindle and multispindle types, machines for external and internal honing, and universal, semiautomatic, and automatic machines. The cutting tool, or hone, is attached to a spindle and is equipped with fine-grain abrasive rods, or sticks. The principal motion of the tool (rotation) is produced by a separate electric motor or hydraulic turbine, and the feed motion (rectilinear or reciprocating) is usually obtained from an hydraulic drive. There is also a radial feed mechanism that provides for the rapid feed of the sticks toward the surface being processed and ensures automatic compensation for wear during operation. The most common honing machines are semiautomatic types for honing blind and through holes.