Double-metal hand saw blade and its production process

A production method and bimetallic technology, applied in the direction of metal sawing equipment, metal processing equipment, sawing machine tools, etc., can solve the problems of high process requirements, high production costs, expensive prices, etc., and achieve good wear resistance and production Effects of cost reduction and long service life

Inactive Publication Date: 2006-10-18
王小明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the production of bimetallic hand saw blades by vacuum electron beam or laser welding has high process requirements, complex equipment, expensive prices, and high production costs.

Method used

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  • Double-metal hand saw blade and its production process
  • Double-metal hand saw blade and its production process
  • Double-metal hand saw blade and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] refer to figure 1 As shown, the production process steps of this embodiment are as follows:

[0020] (1) material preparation

[0021] Such as figure 2 As shown, the finished product of this embodiment is a saw blade 1 with unilateral teeth, and its specification length is 300mm, width is 12mm, thickness is 0.6mm, and the tooth pitch is a standard tooth shape (0° rake angle) of 1.2mm. According to the requirements of the specification of the saw blade 1, the blanks of the saw back body 2 and the sawtooth body 4 of the specified size are prepared. Generally, the material of the saw body 2 is spring steel, such as 65Mn, 60Si2Mn, 50CrMnV, etc., and the material of the saw body 4 is high-speed tool steel, such as W6Mo5Cr4V2 (M2), W6Mo5Cr4V3 (M3), W4Mo2Cr4V (4241), W4Mo3Cr4V (4341), W9Mo3Cr4V (9341), etc., the present embodiment adopts 50CrMnV high-quality alloy spring steel as the material of the saw back body 2, and adopts W6Mo5Cr4V2 high-quality high-speed tool steel ...

Embodiment 2

[0031] Such as image 3 As shown, the technical solution of this embodiment is basically similar to that of Embodiment 1, except that the finished product of this embodiment is a saw blade 1 with double-sided teeth. The hand-used saw blade width of bilateral opening tooth can be 12~65mm, and its specification width of present embodiment is 25mm, and length is 250mm, and thickness is 0.6mm, and pitch is 0.8mm standard tooth; According to the specification requirements of 1, prepare the blanks of the saw back body 2 and the saw tooth body 4 of the specified size. Generally, the saw back body width 2W of double-sided sawtooth is 45% to 94% of the width of the saw blade 1, and the saw tooth body width 4W is 3% to 30% of the width of the saw blade 1. The net saw back body width 2W of blanking in this embodiment is taken as 17.8mm 1. The single-piece net sawtooth body width 4W is 3mm, which is respectively 71.2% and 12% of the width of the saw blade 1, and is for use; Flat butt-we...

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Abstract

The double-metal hand saw blade includes a blade back body, a blade tooth body and a connecting body of silver alloy in between. The production process of the double-metal hand saw blade includes the following steps: preparing material, welding, cutting teeth, heat treatment, and packing. The double-metal hand saw blade has high teeth hardness, high wear resistance, excellent cutting performance, high toughness, long service life, high work efficiency and low production cost.

Description

technical field [0001] The invention relates to the technical field of metal cutting tools, in particular to a hand saw blade and a production method thereof. Background technique [0002] Bimetal hacksaw blades (Bimetal hacksaw blades) are components of two different materials, the saw teeth and the saw back, respectively, high-speed steel and spring steel. They are butt-welded together by vacuum electron beam welding or laser welding. New saw blade. The saw blade has the cutting performance of high-speed steel and good toughness. It is sharp, wear-resistant and not easy to break when used, and is very popular among users. However, the production of bimetallic hand saw blades by vacuum electron beam or laser welding has high process requirements, complex equipment, high prices, and high production costs. Contents of the invention [0003] The object of the present invention is to propose a bimetallic hand saw blade with a new structure and its special production method....

Claims

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Application Information

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IPC IPC(8): B23D61/12B23D65/00C21D11/00
Inventor 王小明
Owner 王小明
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