High-strength aluminum alloy deep hole processing cutter
A technology for machining tools and aluminum alloys. It is used in metal processing equipment, manufacturing tools, milling cutters, etc. It can solve the problems of difficult machining of deep holes, and achieve the effect of high precision and small error.
Inactive Publication Date: 2010-12-29
CHONGQING JIANSHE IND GRP
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Problems solved by technology
There is also an extended keyway milling cutter, which refers to a keyway milling cutter with a ratio of the length of the cutting edge to the diameter ≥ 3, which can process relatively deep holes, but there are still problems that are difficult to process deeper holes. insufficient
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] In specific implementation, such as Figure 1 to Figure 4 As shown, a high-strength aluminum alloy deep hole machining tool is elongated as a whole, including a handle 1, a cutting part 2 and a drill tip 3, and the cutting part 2 has two helical cutting peripheral teeth uniformly distributed along the circumferential direction 7. There are two main cutting edges 4 and one chisel edge 5 at the drill tip, the core diameter 6 of the tool cutting part 2 is 60% of the tool diameter, and the peripheral rake angle 8 of the tool cutting part 2 is 3°~ 5°; the peripheral tooth eccentric relief angle 9 of the cutting part 2 of the tool is 8°, and the diameter 10 at the front end of the cutting part 2 to the diameter 11 at the rear end smoothly transitions to an increase of 0.05 mm. Specifically, the diameter 10 at the front end of the cut...
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The invention discloses a high-strength aluminum alloy deep hole processing cutter, the whole cutter is strip-shaped, the cutter comprises a cutter holder, a cutting part and a drill point, the cutting part is provided with two spiral cutting peripheral teeth which are uniformly distributed along the circumference, the center of the drill point is provided with a chisel edge, and the cutter is characterized in that the core diameter of the cutting part of the cutter is 60 percent of the diameter of the cutter, and the peripheral teeth front angle of the cutting part of the cutter is 3-5 degrees; the peripheral teeth eccentric back angle of the cutting part of the cutter is 8 degrees, and the transition from the diameter of the front end of the cutting part of the cutter to that of the back end of the cutting part is smooth to increase by 0.05mm; and the angle of the vertex angle of bottom teeth at the drill point of the cutter is 160 degrees; the width of the chisel edge at the center of the drill point is 0.3mm; and a first back angle of a main cutting edge of the cutter is 10 degrees, the width is 0.8mm, and a second back angle of the main cutting edge is 20 degrees. The high-strength aluminum alloy deep hole processing cutter has the advantages of large length-diameter ratio of the processed deep hole, small up-down error of the processed deep hole and high processing accuracy.
Description
[0001] technical field [0002] The invention relates to a deep hole processing tool, in particular to a high-strength aluminum alloy deep hole processing tool. [0003] Background technique [0004] High-strength aluminum alloys refer to aluminum alloys whose tensile strength is greater than 480 MPa, mainly antirust aluminum alloys, hard aluminum alloys, superhard aluminum alloys, wrought aluminum alloys, aluminum lithium, etc. Alloys. Generally, it can be used in aerospace materials and other fields. [0005] When processing deep holes on high-strength aluminum alloys, keyway milling cutters with drilling functions are generally used for processing. The cutting part is formed by two helical cutting peripheral teeth uniformly distributed along the circumferential direction, and the tool handle is behind the cutting part, and the drill tip and the cutting part jointly form the working part of the tool. [0006] For ordinary keyway milling cutters, the bottom tooth at the...
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IPC IPC(8): B23C5/10B23B51/00
Inventor 周述斌田文松曹建敏谭人仁
Owner CHONGQING JIANSHE IND GRP