Band saw blade

Abstract

The invention provides a band saw blade. The band saw blade comprises a saw blade body and saw teeth, wherein the saw teeth are arranged repeatedly according to a plurality of major cycles, and the major cycles follow the arrangement rule of a plurality of split tooth sub-cycles; each split tooth sub-cycle comprises N+1 teeth, the Nth tooth is a split tooth, and the (N+1)th tooth is a non-split tooth; among the N split teeth, the (1+3k)th tooth is a non-split tooth, and the rest are split teeth, specifically, k is a natural number, and the split sequences of every two adjacent teeth are different; the split amount of the second tooth and / or the third tooth and / or the (N-1)th tooth and / or the Nth tooth is greater than that of the rest of split teeth in each split tooth sub-cycle; and in each split tooth sub-cycle, the height of the first tooth is greater than that of the rest of split teeth, and the width of the (N+1)th tooth is greater than that of the rest of split teeth. Compared with related art, the band saw blade provided by the invention adopts a non-split tooth structure, so that the cutting force is reduced, the saw-cutting efficiency is improved and the precision of a section is improved in the process of saw-cutting materials difficult to process.

Description

technical field [0001] The invention relates to the technical field of band saw blade design and manufacture, in particular to a band saw blade. Background technique [0002] Judging from the current global cemented carbide band saw blade products, they are mainly divided into two categories: SetStyle and Nonset Style. But it is a blank for the mixed band saw blade (separated tooth type + non-separated tooth type). The main reason is that the processing of band saw blades belongs to the scope of rough processing, and has not yet fully entered the field of fine processing. However, with the increase in processing costs, more and more customers are aware of the need to change the rough machining of band saw blades to fine machining, so the requirements for band saw blades are also rising. Therefore, as a band saw blade manufacturer, it is necessary to design A product that can be used for finishing is a top priority. [0003] From the perspective of global split-tooth carbi...

AI Technical Summary

Problems solved by technology

[0003] From the perspective of global split-tooth carbide band saw blade products, it is mainly based on Bacho's 3868 series (3 teeth / group) and 3881 series (6 teeth / group) as the prototype of the grinding tooth design, such as China A band saw blade and its manufacturing method invented in the patent CN 109311107A. When the band saw blade with many chips and divided teeth is used for sawing difficult-to-cut materials, due to the large cutting force on the teeth, the tooth tip of the saw blade is easy to chip and collapse. The blade has a lot of wear and tear, and the cutting surface is rough

[0004] With the continuous development of the domestic material field, more and more high-end materials such as high-temperature alloys, titanium alloys, and stainless steels are applied to industries such as aerospace, oil drilling, and shipbuilding. These materials are basically difficult-to-cut materials. The tooth shape can no longer meet the needs of customers during sawing, so it is necessary to design a higher-end grinding form for difficult-to-cut materials to reduce the cutting force during the sawing process, reduce the wear of the tooth tip and edge, and improve the sawing performance. Surface finish

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