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Honing strip and manufacturing method thereof

A technology of honing sticks and abrasives, which is applied in the field of honing sticks and its manufacturing, which can solve the problems of large thermal deformation of workpieces and honing heads, workpieces that cannot meet user requirements, and low precision of workpieces, and achieve good cutting effect, small thermal deformation, and high precision. high effect

Active Publication Date: 2011-11-09
ADVANCED TECHNOLOGY & MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the traditional honing stick has the defects of high wear resistance but poor sharpness due to its unreasonable composition, and it will cause defects such as large thermal deformation of the workpiece and the honing head, and low precision of the workpiece, resulting in low productivity and production. Artifacts do not meet user requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The Cu powder after reduction, Ni powder, Co powder and Sn powder, Ag powder and graphite are by weight 62 parts of Cu powder, 14 parts of Sn powder, 8 parts of Ni powder, 5 parts of Co powder, 8 parts of Mix Ag powder with 2 parts of graphite, add a granulating agent, put it into a mixer and mix for 3 hours, then add diamond abrasives and mix for 2 hours, and finally perform granulation to obtain working layer particles. Here, the weight ratio of diamond abrasive in the working layer is 12.5%, and the diamond particle size is W28. Mix 63 parts by weight of Cu powder, 12 parts of Sn powder, 20 parts of Fe powder and 5 parts of Ni powder, add a granulating agent, put into a mixer and mix for 3 hours, after which the granulation process is transitional layer of particles. Put the particles of the working layer into the steel mold and flatten them gently, then put the particles of the transition layer and flatten them. The steel mold is pressed on a hydraulic press, and ...

Embodiment 2

[0056] The Cu powder after reduction, Ni powder, Co powder and Sn powder, Ag powder and graphite are by weight 55 parts of Cu powder, 12 parts of Sn powder, 2 parts of Ni powder, 2 parts of Co powder, 3 parts of Ag powder is mixed with 2 parts of graphite, added granulating agent, mixed on the mixer for 2 hours, here, the weight ratio of CBN particles in the working layer is 6%, CBN particle size is W20, mixed on the mixer for 2 hours, after The granulation process obtains the working layer particles; the Cu powder after reduction, Ni, Fe and Sn are configured transition layer powder according to 60 parts of Cu powder, 8 parts of Sn powder, 10 parts of Fe powder and 5 parts of Ni powder by weight, Add a granulating agent, mix on a ball mill for 2 hours, and then granulate to obtain transition layer granules. Put the particles of the working layer into the steel mold and flatten them gently, then put the particles of the transition layer and flatten them. The steel mold is pre...

Embodiment 3

[0058] The reduced Cu powder, Ni powder, Co powder and Sn powder, Ag powder and Fe 3 o 4 78 parts by weight of Cu powder, 25 parts of Sn powder, 5 parts of Ni powder, 4 parts of Co powder, 4 parts of Ag powder and 2 parts of Fe 3 o 4Mix, add granulating agent, mix on the mixer for 3 hours, add according to the weight ratio of diamond in the working layer is 6%, the diamond particle size is W40, mix on the mixer for 2 hours, and then granulate to obtain the working layer particles. The reduced Cu, Ni, Fe and Sn are configured transition layer powder according to 75 parts of Cu powder by weight, 15 parts of Sn powder, 25 parts of Fe powder and 10 parts of Ni powder, add granulating agent, and mix On-machine mixing was performed for 3 hours, followed by granulation to obtain transition layer granules. Put the particles of the working layer into the steel mold and flatten them gently, then put the particles of the transition layer and flatten them. The steel mold is pressed on...

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PUM

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Abstract

The invention provides a honing strip and a manufacturing method thereof. The method comprises the following steps of: mixing first metal powder prepared from components in a predetermined proportion and nonmetal powder such as graphite, Fe3O4 or MoS2 to form a bonding agent, adding a predetermined amount of abrasive such as diamond or cubic boron nitride (CBN for short) into the bonding agent, and performing granulation to obtain working layer granules; performing granulation on second metal powder to obtain transition layer granules; arranging the working layer granules in a first die to form a working layer of the honing strip, arranging the transition layer granules in the first die and on the working layer to form a transition layer, and pressing the first die to form a preformed honing strip; and charging the preformed honing strip into a second die, and performing hot pressing forming to obtain the honing strip. The honing strip has the characteristics of good exposure effect, low grinding resistance, low heating deformation of a honing head, long durability, high precision of machined workpieces, good finishment and the like.

Description

technical field [0001] The invention relates to the technical field of grinding processing materials, in particular to a honing stick and a manufacturing method thereof. Background technique [0002] Usually, honing machines are mainly used to process various cylindrical holes with a diameter of 5 to 500 mm or larger, such as cylinders, valve holes, connecting rod holes and box holes, etc. The ratio of hole depth to hole diameter can reach 10, or even bigger. Under certain conditions, honing can also process outer circles, planes, spherical surfaces and tooth surfaces. The honing stick is generally set on the honing head of the honing machine, and is used for finishing the surface of the inner hole of the material that needs to be finished. [0003] Honing is used in a wide range of applications, and there are various workpieces that need to be honed. For example, for products such as plunger sleeves and fuel injectors used in automotive fuel injection systems, due to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B33/08C22C9/02
Inventor 叶宗春刘一波刘伟杨德涛徐晓伟黄盛林赵刚陈哲
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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