Preparation method of milling cutter with open slots

An open-slot and milling cutter technology is applied in the field of preparation of open-slot milling cutters, which can solve the problems of insufficient fit between the shape of the blade and the surface contour of the workpiece, affecting the machining accuracy of the product, and increasing the reject rate of the product, so as to achieve a prominent processing effect. , The effect of improving machining accuracy and cutting speed, product accuracy and machining efficiency

Active Publication Date: 2015-06-03
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when the known saw blade milling cutter is used for one-time cutting of workpieces made of non-ferrous metals, copper or stainless steel, no matter whether it is down milling or up milling, the tool is affected by cutting resistance during the cutting process. At the same time, the fit between the shape of the blade and the surface contour of the workpiece is insufficient, so that the force on the cutter body at the cutting point is uneven, resulting in machining resistance caused by vibration of the cutter body, blade wear, machining resonance, knife jamming and knife hitting. It affects the processing accuracy of the product, reduces the cutting speed, and increases the reject rate of the product, resulting in waste of raw materials

Method used

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  • Preparation method of milling cutter with open slots
  • Preparation method of milling cutter with open slots

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preparation example Construction

[0025] A method for preparing a milling cutter with an open slot, the production process includes: making a metal disc from a metal material, and cutting the outer circle of the metal disc into several serrated grooves in the same direction to form a cutter body, which is characterized in that : also includes the production steps:

[0026] ⑴ Distribute the groove bottom of the serrated groove along the center line of one side of the cutter body to make a plurality of open grooves, and then quench the oil and temper the cutter body;

[0027] ⑵Weld an alloy cutter head along the same direction on each sawtooth groove of the cutter body to form a milling cutter;

[0028] (3) The milling cutter made in step (2) is subjected to heat treatment in a vacuum furnace to complete the manufacturing process of the milling cutter with open slots of the present invention.

[0029] The present invention can also adopt following technical scheme:

[0030] The open groove is a round hook-shap...

Embodiment

[0036] ⑴Choose 42Cr2Mo steel as the metal material for making the knife body 1, and make the 42Cr2Mo steel into a disc. According to the requirements of the knife shape, the outer circle of the 42Cr2Mo steel circle is uniformly cut into sawtooth grooves 4 that meet the number of knife shapes. The direction of the groove tip is clockwise (or counterclockwise) in the same direction; at the bottom of the serrated groove along the center line of one side of the cutter body, three round hook-shaped opening grooves 2 are scraped out at 120 degrees, and the round hook-shaped opening The groove gradually becomes narrower from the bottom of the serrated groove to the end of the hook point of the round hook. The direction of the hook tip of the round hook-shaped open groove is the same as the direction of the groove tip of the serrated groove, and the two sides of the knife body are initially ground;

[0037] ⑵Quenching and tempering at 860°C until the hardness of 42Cr2Mo steel is HRC32-...

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PUM

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Abstract

The invention relates to a preparation method of a milling cutter with open slots, a manufacturing process comprises: the excircle of a metal disc is cut into a plurality of sawtooth grooves in the same direction in a uniformly distributed manner so as to form a cutter body, the method is characterized in that: (1) after a plurality of open slots are made at the bottom of the sawtooth grooves in a uniformly distributed manner along the center line direction of one surface of the cutter body, oil quenching and tempering treatments are carried out on the cutter body; (2) an alloy cutter head is welded on each sawtooth groove of the cutter body along the same direction, so as to form a milling cutter; (3) a vacuum furnace heat treatment is carried out on the milling cutter manufactured in step (2). According to the preparation method, the open slots are made in one surface of the cutter body, the internal stress of the cutter body is released during cutting, the vibration of the cutter body is eliminated, the problem that the milling cutter vibrates during working is solved, the processing resistance is reduced, the abrasion of a cutting edge is lowered, the phenomena of resonance, cutter blocking and cutter hitting generated when the milling cutter works are prevented, not only are the processing precision and the cutting speed enhanced, but also the waste of raw materials caused by the rejection rate of products is reduced by a large margin.

Description

technical field [0001] The invention belongs to the technical field of cutting tools for metal materials, and in particular relates to a preparation method of a milling cutter with an open slot. Background technique [0002] In the field of metal material cutting, cutting tool technology and cutting processing technology are constantly exploring, practicing, developing and improving around the goal of high efficiency and low consumption of cutting tools. The cutting ability and effect of metal material cutting tools in the actual cutting process directly affect the quality of processed products and the pass rate of products. [0003] At present, when the known saw blade milling cutter is used for one-time cutting of workpieces made of non-ferrous metals, copper or stainless steel, no matter whether it is down milling or up milling, the tool is affected by cutting resistance during the cutting process. At the same time, the fit between the shape of the blade and the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/34
CPCB23P15/34
Inventor 于志泉
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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