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Peripheral edge grinding wheel for machining PCBN (polycrystalline cubic boron nitride) blades

A grinding wheel and peripheral technology, used in bonding grinding wheels, metal processing equipment, abrasives, etc., can solve the problems of high auxiliary time and labor intensity, the grinding wheel cannot meet its requirements, and the dressing tool wears quickly, etc. The effect of high bonding and not easy to fall off

Inactive Publication Date: 2014-04-30
江苏赛扬精工科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the dressing tool wears quickly, and the auxiliary time and labor intensity are large, which affects the production efficiency and increases the production cost.
With the improvement of productivity in the PCBN tool industry, the requirements for the efficiency and precision of PCBN tools processed by diamond grinding wheels, the durability of the grinding wheel, the service life, and the frequency of dressing are getting higher and higher. The current grinding wheels are difficult to meet their requirements.

Method used

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  • Peripheral edge grinding wheel for machining PCBN (polycrystalline cubic boron nitride) blades
  • Peripheral edge grinding wheel for machining PCBN (polycrystalline cubic boron nitride) blades
  • Peripheral edge grinding wheel for machining PCBN (polycrystalline cubic boron nitride) blades

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment one: see Figures 1 to 3 As shown, a peripheral grinding wheel for processing PCBN blades includes a grinding wheel base and an abrasive layer located on the grinding wheel base, and the abrasive layer is bonded and fixed to the base through epoxy resin glue.

[0036] The substrate is a circular steel substrate with a diameter of 400 mm and a thickness of 33 mm.

[0037] The abrasive layer is circular, with an outer diameter of 400 mm, a ring width of 15 mm, and a thickness of 7 mm.

[0038] The raw material composition and mass percentage of the abrasive layer are: 55% diamond, 32% vitrified bond, 8% pore forming agent, and 5% phenolic resin solution.

[0039] The abrasive layer has a porosity of 45% and a pore diameter of 60-80 μm.

Embodiment 2

[0040] Embodiment 2: A peripheral grinding wheel for processing PCBN blades, comprising a grinding wheel base and an abrasive layer located on the grinding wheel base, and the abrasive layer is bonded and fixed to the base by epoxy resin glue.

[0041] The base is a circular aluminum base with a diameter of 350 mm and a thickness of 77.5 mm.

[0042] The abrasive layer is circular, with an outer diameter of 350 mm, a ring width of 10 mm, and a thickness of 14.5 mm.

[0043] The raw material composition and mass percentage of the abrasive layer are: 64% diamond, 28% vitrified bond, 3% pore forming agent, and 5% phenolic resin solution.

[0044] The abrasive layer has a porosity of 37% and a pore diameter of 60-80 μm.

Embodiment 3

[0045] Embodiment 3: A peripheral grinding wheel for processing PCBN blades, comprising a grinding wheel base and an abrasive layer located on the grinding wheel base, and the abrasive layer is bonded and fixed to the base by epoxy resin glue.

[0046] The substrate is a circular aluminum substrate with a diameter of 400mm and a thickness of 14mm.

[0047] The abrasive layer is circular, with an outer diameter of 400 mm, a ring width of 12 mm, and a thickness of 8 mm.

[0048] The raw material composition and mass percentage of the abrasive layer are: 50% diamond, 35% vitrified bond, 10% pore-forming agent, and 5% phenolic resin solution.

[0049] The abrasive layer has a porosity of 48% and a pore diameter of 80-100 μm.

[0050] Referring to shown in table 1, carry out the part parameter contrast of identical machining process for peripheral grinding wheel of the present invention and existing emery wheel:

[0051] Table 1 Peripheral Grinding Wheel of the present invention ...

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Abstract

The invention discloses a peripheral edge grinding wheel for machining PCBN (polycrystalline cubic boron nitride) blades. The peripheral edge grinding wheel comprises a grinding wheel matrix and a grinding material layer. The grinding material layer is positioned on the grinding wheel matrix and is made of raw materials including, by weight, 44-65% of diamond, 22.5-40.5% of ceramic bonding agents, 0.5-10% of pore forming agents and 5-10% of phenolic resin liquid; the ceramic bonding agents are made of raw materials including, by weight, 40-60.5% of silicon dioxide, 5.5-17% of alumina, 25-35% of boric acid, 2-7% of sodium carbonate, 8-11% of lithium hydroxide and 2-6% of calcium oxide; pore forming agents are alumina hollow balls. The peripheral edge grinding wheel has the advantages of good sharpness, high grinding quality and long service life.

Description

technical field [0001] The invention relates to a peripheral grinding wheel, in particular to a vitrified bond diamond peripheral grinding wheel for processing PCBN blades. Background technique [0002] In recent years, the mechanical processing industry has developed towards high speed, high efficiency and high precision. Due to the high cutting efficiency and high precision of the workpiece, PCBN inserts have shown excellent cutting performance in high-speed cutting of metal materials, and have been widely used in automobiles, Aviation, aerospace, building materials and other industrial fields. However, the high hardness and high wear resistance of PCBN inserts make it difficult to sharpen the tool, mainly reflected in the low material removal rate, large wear of the grinding wheel, low sharpening efficiency, and serrated cutting edge. The sharpening process of PCBN tools has become one of the obstacles to its popularization and application. In order to break through this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D5/00B24D3/18B24D18/00
Inventor 李伟超王凯平
Owner 江苏赛扬精工科技有限责任公司
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