Dual-metal-band saw-blade strengthening tooth for enhancing strength of welding line

A technology of double metal strips and strengthened welds, which is applied in the direction of metal sawing equipment, metal processing equipment, sawing machine tools, etc., to achieve the effects of high-efficiency and high-speed sawing, prolonging the service life, and strengthening the strength of welds

Active Publication Date: 2009-11-25
BICHAMP CUTTING TECH (HUNAN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to design a bimetallic band saw blade reinforced tooth that can strengthen the strength of the weld in view of the deficiencies in the prior art. Maintain efficient and high-speed sawing

Method used

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  • Dual-metal-band saw-blade strengthening tooth for enhancing strength of welding line
  • Dual-metal-band saw-blade strengthening tooth for enhancing strength of welding line
  • Dual-metal-band saw-blade strengthening tooth for enhancing strength of welding line

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Embodiment Construction

[0041] Such as Figure 2 to Figure 5 As shown, the double-metal band saw blade reinforcing tooth of the present invention that can strengthen the strength of the weld is composed of a back material part 2 and a tooth material part 1 welded on the back material part, and the tooth edge has a third rear corner edge 11, The second rear corner edge 9, the front edge 12, and there is a transition fillet 10 between the third rear corner edge 11 and the second rear corner edge 9, and the third rear corner edge 11 is terminated with the tooth groove line 6; A first rear corner edge 7 is provided between the top of the front edge 12 and the second rear corner edge 9 so that the tooth shape becomes a three rear corner shape, and there is a transition circle between the second rear corner edge 9 and the first rear corner edge 7 Angle 8, and the first relief angle a2 is greater than the second relief angle a3, the second relief angle a3 is smaller than the third relief angle a4, and there...

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Abstract

A dual-metal-band saw-blade strengthening tooth for enhancing strength of welding line comprises a back material part and a tooth material part; the tooth edge orderly includes a third back angle edge, a third back angle edge, and a front edge; lower end of the third back angle edge is connected with tooth slot line; top end of the front edge and the second back angle edge are set with a first back angle edge between the two for forming a three-back-angle shape of the tooth; the first back angle Alpha 2 is bigger than the second back angle Alpha 3 which is smaller than the third back angle Alpha 4; the Alpha 2 is not smaller than 20 degrees but not greater than 45 degrees, the Alpha 3 is not smaller than 10 degrees but bit greater than 35 degrees, and Alpha a4 is not smaller than 45 degrees but not greater than 85 degrees. Tooth top height of the first back angle is 0.2mm-0.40mm, included angle Alpha a5 between blade and cutting direction is not smaller than 70 degrees but not greater than 85 degrees; the offset angle Alpha a6 is not smaller than 3 degrees but not greater than 25 degrees. Accordingly, this invention is excellent in flexibility, and able to maintain high-efficiency high-speed sawing while sawing working piece of complex shape, and prolong service life of saw belt.

Description

technical field [0001] The invention relates to a bimetallic band saw blade, and further refers to its sawtooth structure. Background technique [0002] With the increasing development of the manufacturing industry, the application fields of bimetallic band saw blades are becoming wider and wider. At the same time, the diversification of sawing workpieces also puts forward higher requirements for sawing tooth profiles and sawing efficiency. [0003] In the prior art, bimetallic band saw blades are composed of high-speed steel tooth tips and spring steel back materials. The weld between the tooth tips and the back material is completed by electron beam welding, laser welding or other welding methods. Due to sawing When the tooth fillet is about 0.25mm, it can no longer be used. Therefore, the height of the high-speed steel part of the tooth tip is generally controlled between 1mm-1.7mm. Due to the limited height of the high-speed steel at the tooth tip, the weld is relativel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D61/14
Inventor 郭喜如
Owner BICHAMP CUTTING TECH (HUNAN) CO LTD
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