Cutting tool and method for treating surface thereof

A technology of cutting tools and sand blasting treatment, which is applied in the field of cutting tools and its surface treatment, can solve the problems of not being smooth and flat, poor surface resistance to chipping, low wear resistance, etc., to improve surface conditions and wear resistance The effect of sex and toughness and excellent durability

Inactive Publication Date: 2011-09-28
TAEGUTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the surface treatment methods disclosed above can provide a flat surface to some extent, but the provided surface has poor chipping resistance, low wear resistance and low toughness because it is not smooth and flat enough

Method used

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  • Cutting tool and method for treating surface thereof
  • Cutting tool and method for treating surface thereof
  • Cutting tool and method for treating surface thereof

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1-3

[0045] Commonly used Al coated on cemented carbide base material with 15μm 2 o 3 Layered CNMG 12 cutting inserts were used as target samples, on which the grit blasting and brushing treatments were successively performed.

[0046] Wet blasting

[0047] The surface of the cutting insert (CNMG 12 type) was subjected to wet blasting under the conditions shown in Table 1 by using a wet blasting apparatus. Alumina particles of the Treibather product known as Alodur were used as abrasives, which were 170 mesh (90 μm) alumina particles and 230 mesh (63 μm) alumina particles at a ratio of 1: 1 in the form of a mixture by weight ratio. The density of the abrasive was 1.01 kg / l (amount of alumina contained in 1 1 of a mixture of alumina and water).

[0048] Table 1 wet blasting treatment conditions

[0049] parameter

unit

Embodiment 1

Embodiment 2

Embodiment 3

spray gun pressure

-bar

1.4

1.8

2.5

gun movement speed

mm / min...

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Abstract

The present invention relates to cutting tools and a method for treating a surface thereof. The present invention provides a method for treating a surface of a cutting tool, the method including blasting the surface of the cutting tool using a granular abrasive and brushing the blasted surface of the cutting tool. The present invention also provides a cutting tool whose surface is treated by the method. According to the present invention, the surface condition of the cutting tool is improved, thereby achieving superior resistance to chipping while cutting a workpiece and excellent durability by means of improvement in abrasion resistance and toughness.

Description

technical field [0001] The present invention relates generally to cutting tools and methods for treating their surfaces, and more particularly to cutting tools and methods for treating their surfaces, wherein the surface (coating) of the cutting tools is first sandblasted, then brushed, In order to make the cutting tool have excellent chipping resistance when cutting a workpiece and have excellent durability by improving wear resistance and toughness. Background technique [0002] Cutting tools are used to process cast iron, carbon steel, alloy steel, etc. A cutting tool, such as an insert, cuts when in contact with a workpiece. Generally, cutting tools such as inserts use cemented carbide made by mixing cobalt (Co) with tungsten carbide (WC) and sintering the mixture, or titanium carbonitride-based The surface of the material has a wear-resistant hard coating. The coating is made by using chemical vapor deposition (CVD) method or physical vapor deposition (PVD) method su...

Claims

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Application Information

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IPC IPC(8): B24B3/36
CPCB24B3/36B24B29/005B24C7/0007B23B27/145B24C1/10Y10T83/929B24C1/00
Inventor 金钟声宋时勳
Owner TAEGUTEC
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