Hard alloy milling cutter with high impact resistance and preparation method thereof

A technology of anti-impact force and milling cutter, which is applied in the field of mechanical processing, can solve the problems of milling cutter impact wear, temporary solution, and affecting milling cutter performance, etc.

Inactive Publication Date: 2021-11-09
吉安富奇精密制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current milling cutter prolongs the service life of the milling cutter by improving the structure of the milling cutter, but the problem of the material can easily affect the performance of the milling cutter. A method for preparing milling cutters from high-quality alloys, and at the same time provides a surface treatment method for milling cutters, which effectively solves the problem of impact wear of milling cutters

Method used

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  • Hard alloy milling cutter with high impact resistance and preparation method thereof
  • Hard alloy milling cutter with high impact resistance and preparation method thereof
  • Hard alloy milling cutter with high impact resistance and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] An impact-resistant hard milling cutter. The cemented carbide raw materials for preparing the milling cutter are: 73 parts of No. 45 steel, 40 parts of iron, 1.5 parts of titanium, 0.04 parts of boron, 0.8 parts of nickel, and 0.15 parts of cobalt.

[0045] Wherein, the concrete preparation process of a kind of impact-resistant hard milling cutter comprises the following steps:

[0046] 1) The preparation method of the alloy embryo is as follows:

[0047] 1) Prepare materials according to the ratio of the above raw materials;

[0048] 2) Put No. 45 steel into a high-temperature furnace, heat it, and raise the temperature to 1600°C. After it is completely melted and a uniform metal liquid is formed, keep it warm for 2.5 hours and set aside;

[0049] 3) Put the raw material with 65% iron mass into the high-temperature furnace, heat it up to 1740°C at a rate of 13°C / min, keep it warm for 2.5 hours, add titanium, nickel, cobalt, and boron into the furnace, and heat it at a...

Embodiment 2

[0074] An impact-resistant hard milling cutter, the cemented carbide raw materials for preparing the milling cutter are: 70 parts of No. 45 steel, 45 parts of iron, 1 part of titanium, 0.05 part of boron, 0.5 part of nickel and 0.2 part of cobalt.

[0075] Wherein, the concrete preparation process of a kind of impact-resistant hard milling cutter comprises the following steps:

[0076] 1) The preparation method of the alloy embryo is as follows:

[0077] 1) Prepare materials according to the ratio of the above raw materials;

[0078] 2) Put No. 45 steel into a high-temperature furnace, heat it, and raise the temperature to 1600°C. After it is completely melted and a uniform metal liquid is formed, keep it warm for 2 hours and set aside;

[0079] 3) Put the raw material with 70% iron mass into the high-temperature furnace, heat it up to 1740°C at a rate of 10°C / min, keep it warm for 3 hours, add titanium, nickel, cobalt, and boron into the furnace, and heat it at a rate of 4°C...

Embodiment 3

[0104] An impact-resistant hard milling cutter, the cemented carbide raw materials for preparing the milling cutter are: 75 parts of No. 45 steel, 35 parts of iron, 2 parts of titanium, 0.03 parts of boron, 1.2 parts of nickel, and 0.1 part of cobalt.

[0105] Wherein, the concrete preparation process of a kind of impact-resistant hard milling cutter comprises the following steps:

[0106] 1) The preparation method of the alloy embryo is as follows:

[0107] 1) Prepare materials according to the ratio of the above raw materials;

[0108] 2) Put No. 45 steel into a high-temperature furnace, heat it, and raise the temperature to 1600°C. After it is completely melted and a uniform metal liquid is formed, keep it warm for 3 hours and set aside;

[0109] 3) Put the raw material with an iron quality of 60 into a high-temperature furnace, heat it up to 1740°C at a rate of 15°C / min, keep it warm for 2 hours, add titanium, nickel, cobalt, and boron into the furnace, and heat it at a r...

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Abstract

The invention discloses a hard alloy milling cutter with the high impact resistance and a preparation method thereof. According to the hard alloy for preparing the milling cutter, the hardness of the alloy is improved through a solid solution strengthening method, and the hardness and the impact resistance of the alloy are improved through heat treatment processes such as quenching and tempering; and the blending phase is added, so that different metallographic structures in the alloy can be uniformly dispersed in the alloy, and the comprehensive performance of the alloy is improved. The quenching liquid is formed by combining macromolecules, main components in the quenching liquid have an excellent cooling accelerating effect, and meanwhile, the quenching liquid has thermal stability, excellent light benign property and clean brightness. The surface of the milling cutter is treated, hardened powder can be sprayed on the alloy surface through a plasma spraying technology, a powdery coating is subjected to high-temperature baking, leveling and curing to become a final coating, the final coating has high-temperature resistance, and meanwhile the cutting capacity of the milling cutter cannot be reduced.

Description

technical field [0001] The invention relates to the technical field related to mechanical processing, in particular to a cemented carbide milling cutter with strong impact resistance and a preparation method thereof. [0002] technical background [0003] A milling cutter is a rotating tool with one or more teeth for milling. When working, each knife tooth cuts off the allowance of the workpiece intermittently in turn. Milling cutters are mainly used for machining planes, steps, grooves, forming surfaces and cutting off workpieces on milling machines. Milling cutters are roughly divided into the following two categories: pointed milling cutters, which grind a narrow margin on the flank to form a relief angle. Due to the reasonable cutting angle, their service life is relatively high. The tooth back of the sharp-tooth milling cutter has three forms: straight line, curved line and broken line. Straight backs are often used for fine-toothed finishing milling cutters. The tee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/08C21D1/18C21D1/26C21D1/58C21D6/00C22C33/06C22C38/10C22C38/14C23C4/10C23C4/134C23C4/14
CPCC22C38/14C22C38/002C22C38/105C23C4/134C23C4/14C22C33/06C21D1/18C21D1/26C21D6/001C21D6/007C21D1/58C23C4/10
Inventor 刘天桂高建华刘阳肖孝超黎明林
Owner 吉安富奇精密制造有限公司
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