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Band saw blade manufacturing method and band saw blade

A manufacturing method and technology for band saw blades, which are applied in the direction of tool manufacturing, manufacturing tools, metal sawing equipment, etc.

Inactive Publication Date: 2021-09-14
BICHAMP CUTTING TECH (HUNAN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially burrs on one side will cause the problem of asymmetrical teeth

Method used

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  • Band saw blade manufacturing method and band saw blade
  • Band saw blade manufacturing method and band saw blade
  • Band saw blade manufacturing method and band saw blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Using the method of the present invention to level and straighten the 67*1.6-1 / 1.5TPI specification band saw blade after 1000m tooth milling, the inlet gap is 0.5mm, the outlet gap is 1.6mm, and the inlet gap is 31% of the outlet gap. After leveling and straightening, the surface temperature rises by 40°C, and the knife bend is 0.3mm / 1000mm. Then carry out the processing of teeth dividing, cleaning, quenching and tempering processes, the average back of the band saw blade after processing is 0.028mm, the maximum value is 0.05mm, and the qualified rate is 100% (the qualified standard is 0.07mm). The difference between the maximum value and the minimum value of the amount of teeth is 0.03mm.

[0043] The bimetallic band saw blade processed by the above method is characterized by the turtle back Image 6 As shown, the sawtooth has no side burrs.

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Abstract

The invention discloses a band saw blade manufacturing method and a band saw blade. The band saw blade manufacturing method comprises the following steps: sequentially carrying out leveling and straightening, tooth dividing, quenching, tempering and surface treatment on a double-metal band saw blade after tooth milling, and further processing into the double-metal band saw blade. In the leveling and straightening process of the double-metal band saw blade, the surface temperature of the double-metal band saw blade is increased, and the surface temperature of the leveled and straightened double-metal band saw blade is increased by 25-50 DEG C. According to the band saw blade manufactured through the method, the internal stress of the band saw blade is well reduced or even eliminated, deformation caused by internal stress release during quenching is small, deformation of a turtle back, an S bend and the like after quenching is well controlled, burrs on the two side faces of a band saw are flattened through leveling and straightening, the tooth dividing precision and the symmetry degree are greatly improved, and therefore, the quality and the yield of the band saw blade can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of band saw blades, in particular to a band saw blade manufacturing method and the band saw blade. Background technique [0002] The bimetallic band saw blade is a continuous band sawing tool. Its appearance and size have a great influence on the performance. Among them, the back of the turtle mainly affects the verticality of the sawing section, and the back of the turtle is too large to easily cause cutting failure. Therefore, Bimetallic band saw blades have strict requirements on the back of the turtle. Tooth precision is also an important size factor. Excessive tooth tolerance not only easily causes cutting deviation, but also easily causes problems such as rough cutting surface and sawing breakage, which greatly reduces the life of the band saw blade. [0003] The teeth of the bimetal band saw blade are high alloy steel, usually high speed steel, and the back is high strength steel, usually high streng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D65/04B23D61/12
CPCB23D65/04B23D61/12
Inventor 贾寓真成有才刘国跃
Owner BICHAMP CUTTING TECH (HUNAN) CO LTD
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