A kind of production process of saw blade substrate

Abstract

The invention discloses a production process of a saw web base body. The production process comprises the following steps: S1, drawing an outer contour of the saw web base body on a steel plate, cutting the steel plate through laser cutting along a loop line, to prepare a molded saw web base body, and polishing the place around teeth on the molded saw web base body, to remove scales and burrs which are generated in a cutting process; S2, performing leveling and tempering treatment; S3, detecting the planeness of the saw web base body in the step S(2h), continuously leveling the saw web base body if end face run-out is large, and conveying into a subsequent grinding station if the saw web base body is qualified; S4, grinding the saw web base body; S5, processing a center hole and a positioning hole in the end face of the saw web base body with a laser cutter after the saw web base body is ground, and processing the saw web base body to obtain a finished product. The production process has the beneficial effects that the residual stress in the saw web base body can be completely eliminated, and the planeness of the leveled saw web base body is less than 0.02 mm; the strength and the toughness of the saw web base body are improved, and the grinding precision is high; after the saw web base body is ground, the thickness error is + / - 0.005 mm; the manufacturing process is simple.

Description

technical field [0001] The invention relates to the technical field of saw blade substrate processing, in particular to a production process of the saw blade substrate. Background technique [0002] Saw blades are used to cut steel, wood, plastic, etc. The saw blade is a roughly circular thin piece, generally made of high-speed steel plate. Its outer edge is continuous teeth. There is a central hole in the middle and on the end face of the saw blade. The saw blade is processed by a series of processes from the saw blade base made. figure 1 It is a schematic diagram of the structure of the saw blade base. The production process of the saw blade base is: first draw the outer contour of the saw blade on the steel plate, and then perform laser cutting along the scribed line. After laser cutting, grind the teeth, and after grinding, saw The blade base is put into the tempering furnace for tempering. After tempering and leveling, the upper and lower end surfaces of the saw blad...

AI Technical Summary

Problems solved by technology

However, the flatness of the saw blade base obtained after the existing tempering process is only 0.04~0.06mm, which is still relatively large. In the actual cutting process, the phenomenon of eccentricity leads to poor cutting quality. In addition, the saw blade base In the tempering furnace, it is leveled in a stacked state, and the saw blade base in the middle or bottom is not evenly heated, resulting in internal residual stress not completely eliminated

[0004] In addition, in the flat grinding process, in order to obtain a saw blade substrate with a design thickness of 2.0mm, the traditional flat grinding process is: firstly, flat grind the upper surface of the saw blade substrate with a thickness of 2.04mm after laser cutting for 10 times , the amount of flat grinding each time is 0.002mm, and the upper datum is obtained after flat grinding, and then the above datum is used as the positioning datum, and the lower surface of the saw blade substrate is flat ground 10 times, and the amount of flat grinding is 0.002mm each time, and after flat grinding, it is obtained The lower datum, in theory, the distance between the upper datum and the lower datum is 2.0mm, however, the thickness of the saw blade substrate is measured, the thickness is actually 2±0.01mm, there is a large error

Because the process needs to go through 20 times of grinding, the grinding benchmarks are different each time, and there is a large cumulative error. Therefore, after this process, there are defects of large errors, and the product accuracy is low, which brings great potential for subsequent processing. It is difficult and affects the quality of the saw blade

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