Double-surface chip breaking arc-shaped edge anti-attrition turning tool blade under high-temperature cooling

A technology of arc-shaped blades and blades, which is applied in the direction of lathe tools, turning equipment, tool holder accessories, etc., can solve the problems of difficult chip breaking, shortened service life, high cutting temperature, etc., to reduce tool wear and prevent winding , The effect of reducing the cutting temperature

Inactive Publication Date: 2019-06-04
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims at the large and concentrated cutting force, high cutting temperature, difficulty in chip breakage and difficulty in chip removal in the process of semi-finishing and finishing high-temperature alloys of existing turning blades, which further lead to tool wear, serious damage, and easy sticking of the tool. To solve the problem of significantly shortened life, provide a double-sided chip-breaking arc-edge wear-reducing cutting tool under high-pressure cooling

Method used

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  • Double-surface chip breaking arc-shaped edge anti-attrition turning tool blade under high-temperature cooling
  • Double-surface chip breaking arc-shaped edge anti-attrition turning tool blade under high-temperature cooling
  • Double-surface chip breaking arc-shaped edge anti-attrition turning tool blade under high-temperature cooling

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specific Embodiment approach 1

[0020] Specific implementation mode one: combine Figure 1-Figure 6 Explain, a double-sided chip-breaking arc-edge wear-reducing blade under high-pressure cooling in this embodiment, the shape of the blade is a rhombus with an angle of 80°, and it adopts a design that can be used on both sides, and the position running through the geometric center of the blade is a fastening threaded hole (12), there are two hand-shaped tiger mouth bosses (1) near the fastening threaded hole (12) in the middle area of ​​the blade, and a high-pressure volume groove (9) around the fastening threaded hole (12) between the two, There is a high-pressure diversion groove (8) between the ends of the two-handed tiger mouth boss (1), and an arc-shaped edge (2) is provided around the blade, and an arc-shaped edge (2) is provided on the arc-shaped rake face (11) along the arc-shaped edge (2). Button-shaped projections Button-shaped projections (10), every two arc-shaped blades (2) at the intersection of ...

specific Embodiment approach 2

[0021] Specific implementation mode two: combination figure 1 , figure 2 and image 3 Explain that the arc-shaped edge (2) described in this embodiment has a radius of curvature of 60mm, so that the edge angle of each point on the cutting edge is different. During cutting, the tool has a certain edge angle due to the effect of the curved edge, and the existence of the edge angle changes. The direction of chip flow is defined, so that it is discharged toward the direction of the chip breaker, away from the machined surface of the workpiece, avoiding the chip from scratching the workpiece, improving the quality of the machined surface, and ensuring the accuracy of the machined surface.

specific Embodiment approach 3

[0022] Specific implementation mode three: combination figure 1 and Figure 4 Explain that the circular-arc tool tip (7) and the arc-shaped edge (2) in this embodiment are the direct contact area between the blade and the chips, and are also areas of severe wear. The circular pit lattice microtexture (5), the pit diameter is 20 μm, the depth dimension conforms to the arithmetic sequence whose first term is 20 μm, and the tolerance is 10 μm; this kind of circular pit lattice microtexture (5) The distribution method has a certain absorption and dispersion effect on the stress, which can improve the stress distribution of the tool, make the overall stress distribution of the tool relatively uniform, and have no obvious stress concentration, and play a role in protecting the arc tool tip (7), thereby prolonging the service life of the tool ; At the same time, when the frontal friction and bonding between the cutter face and the chip are reduced, the chip will be curled, which wil...

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Abstract

The invention discloses a double-surface chip breaking arc-shaped edge anti-attrition turning tool blade under high-temperature cooling, and belongs to the technical field of machining tools. The problems that in the cutting process of high-temperature alloy, the cutting force is large and concentrated, the cutting temperature is high, the cutting chips are hard to break and the chip discharging is difficult are solved. The appearance of the blade is in an 80-degree rhombus shape, the design of useable double surfaces is adopted, the central position of the blade is a fastening threaded hole,two hand thumb-index web bosses are arranged at the middle part areas of the blade, and high-pressure containing and accumulating grooves are formed in the position enclosing the fastening threaded hole; high-pressure flow guiding grooves are formed between the positions, close to rail ends, of the two hand thumb-index web bosses; arc-shaped edges are arranged around the blade, button-shaped protrusions are arranged on the arc-shaped front blade surfaces along the arc-shaped edges, arc tool noses are arranged at intersecting acute angles of every two arc-shaped edges, circular pit dot matrix microstructures are formed in the positions close to the arc tool noses, and chip breaking bosses are arranged between the arc tool noses and the tail ends of the hand thumb-index web bosses; square pit dot matrix microstructures are formed in the positions, facing the arc tool noses, of the chip breaking bosses; and combined type microstructures are formed in the rear blade surfaces of the blade.The double-surface chip breaking arc-shaped edge anti-attrition turning tool blade under high-temperature cooling is used in high-temperature alloy finish machining and semi-finish machining.

Description

technical field [0001] The invention relates to a double-sided chip-breaking arc-shaped grinding-reducing turning blade under high-pressure cooling, which belongs to the technical field of machining tools. Background technique [0002] High-temperature alloy materials are more and more widely used in the field of high-end machining. Some important components in gas turbines, such as power turbine discs and guides, are in special working environments for a long time. Therefore, high-temperature alloy materials with heat resistance, wear resistance and corrosion resistance are selected. , and put forward higher requirements for the processing quality of superalloy materials. However, superalloys are typical difficult-to-machine materials, which have poor cutting performance, low thermal conductivity, and easy hardening during processing. At present, cemented carbide tools are mainly used for cutting high-temperature alloys. Concentration, high cutting temperature, difficult c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B27/00
Inventor 吴明阳刘可可程耀楠褚维旭吴书杰
Owner HARBIN UNIV OF SCI & TECH
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