A bimetallic band saw blade with 3/4t seven-variable tooth profile

A bimetal band and saw blade technology, applied in metal sawing equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of high processing costs and material costs, affecting the economic benefits of enterprises, and short service life. Unobstructed chip removal, improved cutting surface quality, and improved cutting efficiency

Active Publication Date: 2021-02-02
LIAONING INST OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing bimetallic band saw blades generally have problems such as low cutting efficiency, difficult chip removal, tooth beating, poor cutting surface quality and short service life when sawing die steel, stainless steel and other materials, resulting in high processing costs and material costs for enterprises. The high level affects the economic benefits of the enterprise

Method used

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  • A bimetallic band saw blade with 3/4t seven-variable tooth profile
  • A bimetallic band saw blade with 3/4t seven-variable tooth profile
  • A bimetallic band saw blade with 3/4t seven-variable tooth profile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 , figure 2 , image 3 Shown are the front view, left view and partial enlarged view of the bimetallic band saw blade with 3 / 4T seven-variable teeth variable tooth profile tooth profile respectively. The bimetallic band saw blade with 3 / 4T seven-variable-tooth variable-tooth profile of the present invention includes a saw blade tooth portion and a saw blade body, and is characterized in that seven consecutively arranged saw teeth form a set of saw teeth, and the set of saw teeth Repeatedly and continuously arranged to form the teeth of the saw blade;

[0025] The set of saw teeth includes the first tooth, the second tooth, the third tooth, the fourth tooth, the fifth tooth, the sixth tooth, and the seventh tooth in turn; the first tooth is an intermediate guide tooth, and the second tooth , the third tooth is the first half tooth, the fourth tooth and the fifth tooth are the second half tooth, the sixth tooth and the seventh tooth are the third half ...

Embodiment 2

[0034] In the second embodiment, the divided tooth height B is 1.9mm, and the left divided tooth amount F of the second tooth 2 , The amount of right divided teeth of the third tooth F 3 , The amount of left divided teeth of the sixth tooth F 6 , The amount of right divided teeth of the seventh tooth F 7 Both are 0.39mm, and the left split tooth amount of the fourth tooth is F 4 , The amount of right divided teeth of the fifth tooth F 5 Both are 0.24mm; tooth front angle α is 9°30', first tooth back angle β 1 is 26°, the second tooth relief angle β 2 is 36°, so the first profile angle γ 1 =54°30', the second profile angle γ 2 =44°30'; the maximum tooth depth is 5.2mm, the minimum tooth depth is 4.1mm; the maximum tooth groove radius is 3.8mm, the minimum tooth groove radius is 2.2mm; the maximum tooth pitch is 8.3mm, and the minimum tooth pitch is 6.3mm.

[0035] It takes 18 minutes for the bimetallic band saw blade in Example 2 to cut a Φ160mm hot-work die steel round ...

Embodiment 3

[0037] In the third embodiment, the divided tooth height B is 2.0mm, and the left divided tooth amount F of the second tooth 2 , The amount of right divided teeth of the third tooth F 3 , The amount of left divided teeth of the sixth tooth F 6 , The amount of right divided teeth of the seventh tooth F 7 Both are 0.40mm, the left split tooth amount F of the fourth tooth 4 , The amount of right divided teeth of the fifth tooth F 5 Both are 0.25mm; tooth front angle α is 10°, first tooth back angle β 1 is 25°30', the second tooth relief angle β 2 is 35°30', so the first profile angle γ 1 =54°30', the second profile angle γ 2 =44°30'; the maximum tooth depth is 5.2mm, the minimum tooth depth is 4.1mm; the maximum tooth groove radius is 3.8mm, the minimum tooth groove radius is 2.2mm; the maximum tooth pitch is 8.4mm, and the minimum tooth pitch is 6.4mm.

[0038] The bimetallic band saw blade of Example 3 needs 15 minutes to cut a Φ160mm hot work die steel round bar, which ...

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Abstract

The present invention relates to the technical field of cutting tools, and provides a bimetallic band saw blade with a 3 / 4T seven-variable-tooth variable-tooth tooth shape. Seven consecutively arranged saw teeth form a set of saw teeth, and a set of saw teeth is repeated and continuously arranged to form a saw blade. Teeth; the first tooth is the middle guide tooth, the height of all the sub-teeth is the same, the left sub-teeth of the second and sixth teeth are the same, the right sub-teeth of the third and seventh teeth are the same, the fourth tooth The amount of left teeth of the second tooth is the same as that of the fifth tooth, and the amount of left teeth of the second tooth is different from that of the fourth tooth; the rake angles of all the teeth are the same, and each tooth has two Tooth back angle; the slot of each tooth is arc-shaped, the tooth depth of each tooth in a set of teeth is different, the radius of each tooth slot is different, and the pitch of each tooth is different. The invention can improve cutting efficiency, smooth chip removal, avoid toothing, improve cutting surface quality and increase service life when sawing mold steel with high hardness and stainless steel with high viscosity.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a bimetallic band saw blade with a 3 / 4T seven-variable-tooth variable-tooth profile. Background technique [0002] Bimetallic band saw blades are mainly welded by two metal materials. The tip material is high-speed steel, and the tooth back material is spring steel. At present, it is mainly used in pure iron, gray iron, ductile iron, stainless steel, mold steel, carbon steel, titanium Alloy, copper alloy, nickel-based high-temperature alloy, aluminum alloy and other materials are cut. The material structure of sawing includes bar, pipe, I-shaped steel, channel steel and various common shapes. In order to improve sawing quality and sawing efficiency, reduce costs, and saw workpieces of different materials, specifications and shapes, enterprises need to use bimetallic band saw blades with different materials and tooth shape parameters. [0003] In addition to being affected ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D61/12
Inventor 李贵茂柳艳赵晨王秀萍李文月栾庶航付英清
Owner LIAONING INST OF SCI & TECH
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