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Home > Honing Process > Honing - Text
Honing - Text
2013-03-29 by seoer1

Embedded in honing head Whetstone (also known as honing) finishing surface finishing and processing (see cutting). Honingmainly used for processing aperture of 5 to 500 mm or greater variety of cylindrical holes, such as the cylinder, a valve bore, the rod hole and the casing hole, hole depth and the aperture ratio of up to 10, or even larger. Honing also be processed under certain conditions, such as cylindrical, flat, spherical, and the tooth surface. Cylindrical honing surface roughness generally up Ra0.32 ~ 0.08 microns Jing Heng up to Ra0.04 microns, and a small amount to improve the geometric precision, machining accuracy up to IT7. Flat honing surface quality is slightly worse.
Honing honing machine generally, the machine spindle Hones head is generally floating joins; rigid coupling can also be used in order to improve the ability of corrective workpiece geometry. Heng hole, the outer periphery of the honing head is generally set with 2 ~ 10 Whetstone, driven by the machine tool spindle spinning in the hole, and at the same time as a linear reciprocating motion, which is the main sport; through the the honing head in the spring or hydraulic pressure control Whetstone uniform outer rose, for the radial feed of the bore wall being processed. Figure 1 is an inner circle honing schematic diagram. The honing head per minute reciprocating frequency and the ratio of the number of revolutions should be taken as a non-integer, formed by the abrasive surface of the workpiece machining traces cross the textured without repeat. Figure 2 is a single Whetstone trajectory when the bore honing. Whetstone down reciprocating one revolution of the workpiece. The rough honing Whetstone abrasive particle size of 120 to 180, the fine honing fine-grained Whetstone below W28. Whetstone width of 3 to 20 mm, a hole length of a length of about 1/3 to 3/4. Whetstone reciprocate in the hole when the length of both ends beyond the hole should not be greater than 1/3 of the Whetstone full-length, or easy to produce a the  pair port; overtravel is less than the the Whetstone length of 1/4, and make the hole was drum. Cylindrical, flat honing principles and operational requirements within honing.

 

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