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CN-121972696-A - Indexable hard alloy blade for processing titanium alloy

CN121972696ACN 121972696 ACN121972696 ACN 121972696ACN-121972696-A

Abstract

The invention relates to a machining tool technology, in particular to an indexable hard alloy blade for machining titanium alloy, which comprises a cutter bar and an alloy cutter body, wherein two mounting grooves are formed in the outer side of the cutter bar and close to the bottom, the two mounting grooves are arranged in an annular array, a placing groove is formed in the inner wall of one side of each mounting groove, the alloy cutter body is arranged in the inner side of the placing groove, the first arc blade and the second arc blade are matched with each other through the placing groove, an alloy conductor, the first arc blade and the second arc blade and the like, the matching of the first arc blade and the second arc blade is realized, the cutting depth is increased from the point to point, the cutting force is gradually increased from the minimum value to the maximum value, the problem of the concentration of the cutting force of the traditional linear blade is avoided, the service life of the cutter blade is prolonged, the four corners of the two sides of the alloy cutter body can be used, the cutter body can be continuously machined through rotation or turn over after the cutter blade is worn, the utilization rate of the blade is improved, the replacement frequency is reduced, and the machining cost is reduced.

Inventors

  • HE SHIJIONG
  • WANG CHENGCHUN

Assignees

  • 四川中景航天科技有限公司

Dates

Publication Date
20260505
Application Date
20260228

Claims (10)

  1. 1. The indexable hard alloy blade for processing the titanium alloy comprises a cutter bar (1) and an alloy cutter body (4) and is characterized in that an installation groove (2) is formed in the position, close to the bottom, of the outer side of the cutter bar (1), two installation grooves (2) are formed in an annular array, a placing groove (3) is formed in the inner wall of one side of each installation groove (2), and the alloy cutter body (4) is arranged on the inner side of the placing groove (3).
  2. 2. The indexable cemented carbide insert for machining titanium alloy according to claim 1, wherein a circular opening (5) is formed in one side of the alloy cutter body (4), conical grooves (51) are formed in the inner side of the circular opening (5) close to two sides, fastening screws (6) are arranged in the inner side of the circular opening (5), fixing screw holes (7) are formed in the inner side of the placing groove (3), one end of each fastening screw (6) extends to the inner side of each fixing screw hole (7), and the fastening screws (6) are matched with the corresponding fixing screw holes (7).
  3. 3. The indexable cemented carbide insert for machining a titanium alloy according to claim 1, wherein the top and the bottom of the alloy cutter body (4) are respectively provided with a first circular arc edge (41), a second circular arc edge (42) is arranged between the four corners of the alloy cutter body (4) and the first circular arc edges (41), and both the first circular arc edges (41) are horizontally arranged.
  4. 4. An indexable cemented carbide insert for machining titanium alloys according to claim 1, characterized in that the alloy body (4) is provided with convex edges (8) on both sides near the top and bottom, respectively.
  5. 5. The indexable cemented carbide insert for machining a titanium alloy according to claim 4, wherein an arc-shaped hiding groove (9) is formed in the inner side of the mounting groove (2) near the top, and the side of the convex edge (8) away from the alloy cutter body (4) extends to the inner side of the arc-shaped hiding groove (9).
  6. 6. An indexable cemented carbide insert for machining a titanium alloy according to claim 1, wherein the recess (3) and the alloy body (4) are both arranged obliquely.
  7. 7. An indexable cemented carbide insert for working a titanium alloy according to claim 1, characterized in that the outer side of the alloy body (4) is provided with an adhesion layer (10).
  8. 8. An indexable cemented carbide insert for working a titanium alloy according to claim 7, characterized in that the outer side of the adhesion layer (10) is provided with a wear layer (11).
  9. 9. An indexable cemented carbide insert for working a titanium alloy according to claim 8, wherein the wear layer (11) is provided on the outside with a high temperature resistant layer (12).
  10. 10. The indexable cemented carbide insert for machining a titanium alloy according to claim 9, wherein the adhesion layer (10) is a titanium nitride coating, the wear-resistant layer (11) is a titanium nitride coating, and the high temperature-resistant layer (12) is a titanium aluminum nitride coating.

Description

Indexable hard alloy blade for processing titanium alloy Technical Field The invention relates to the technical field of machining tools, in particular to an indexable hard alloy blade for machining titanium alloy. Background In the field of machining, titanium alloy materials such as TA7, TA15, TC4, TC11 and the like are widely applied to various fields such as aerospace, medical equipment, high-end equipment manufacturing and the like because of the excellent characteristics of high strength, low density, high corrosion resistance and the like, but titanium alloy is a typical difficult-to-machine material, and has the characteristics of low heat conductivity coefficient, high chemical activity and small elastic modulus, so that the temperature of a cutting area in the machining process is rapidly increased, the abrasion speed of a cutter is accelerated, and extremely high requirements are put on the performance of a machining cutter; At present, an indexable hard alloy blade used for processing titanium alloy is characterized in that a cutting edge is formed by combining a section of circular arc with a horizontal straight line, the rear cutter surface of the blade and the cutting direction are designed to form a rear cutter angle of about 20 degrees, and the structure has obvious defects that on one hand, when the cutting step of the straight line cutting edge is larger than the radius of the circular arc, the cutting depth is kept constant, so that the cutting force in the area is concentrated, the abrasion speed of the cutting edge is accelerated, and on the other hand, the rear cutter angle of about 20 degrees weakens the structural strength of the blade, and the cutting edge is extremely easy to be damaged or even cracked under the cutting environment of high temperature and high pressure; with the continuous progress of the cutting process, the abrasion of the cutting edge is further aggravated, the cutting force is rapidly increased, and finally the blade is rapidly failed, so that the processing efficiency of the titanium alloy is seriously reduced under the condition, and the production cost is greatly increased due to frequent replacement of the blade. Based on this, the present invention discloses an indexable cemented carbide insert for machining titanium alloys. Disclosure of Invention In order to solve the problems that when the cutting step is larger than the radius of an arc, the cutting depth of a straight cutting edge of the existing part alloy cutter is kept constant, so that the cutting force in the area is concentrated, the abrasion speed of the cutting edge is accelerated, the structural strength of the cutter blade is weakened by a rear cutter angle of about 20 degrees, under the cutting environment of high temperature and high pressure, the cutting edge is extremely easy to be damaged or even cracked, the abrasion of the cutting edge is further aggravated along with the continuous cutting process, the cutting force is rapidly increased, finally, the cutter blade is rapidly disabled, the processing efficiency of the titanium alloy is seriously reduced, and the production cost is greatly increased due to frequent replacement of the cutter blade. Preferably, a circular opening is formed in one side of the alloy cutter body, conical grooves are formed in the inner side of the circular opening, close to two sides, of the circular opening, fastening screws are arranged on the inner side of the circular opening, fixing screw holes are formed in the inner side of the placing groove, one ends of the fastening screws extend to the inner sides of the fixing screw holes, and the fastening screws are matched with the fixing screw holes. Preferably, the top and the bottom of the alloy cutter body are respectively provided with a first arc blade, a second arc blade is arranged between the four corners of the alloy cutter body and the first arc blades, and the two first arc blades are all horizontally arranged. Further, convex blades are respectively arranged on two sides of the alloy cutter body, which are close to the top and the bottom. Further, an arc-shaped hiding groove is formed in the position, close to the top, of the inner side of the mounting groove, and one side, far away from the alloy cutter body, of the convex edge extends to the inner side of the arc-shaped hiding groove. Furthermore, the placing groove and the alloy cutter body are obliquely arranged. Further, an adhesion layer is arranged on the outer side of the alloy cutter body. Further, the outside of adhesion layer is provided with the wearing layer. Further, a high temperature resistant layer is arranged on the outer side of the wear-resistant layer. Further, the adhesion layer is made of a titanium nitride coating, the wear-resistant layer is made of a titanium nitride coating, and the high-temperature-resistant layer is made of a titanium aluminum nitride coating. Compared with the prior art, the invention has the benefic