Search

CN-118023863-B - Titanium 3D curved surface profiling material processing technology

CN118023863BCN 118023863 BCN118023863 BCN 118023863BCN-118023863-B

Abstract

The invention discloses a processing technology of a titanium 3D curved surface profiling material, and belongs to the technical field of titanium processing. The processing technology comprises the steps of peeling a titanium material to remove surface defects, carrying out hot rolling processing on the peeled titanium material to obtain a rough material A with a trapezoid cross section, carrying out annealing processing on the rough material A to eliminate stress, carrying out cold drawing accurate dimension processing on the annealed rough material A to obtain a material B with a trapezoid cross section and a trapezoid waist with an arc-shaped side, meeting the requirement of curve profile, carrying out annealing and follow cutting processing on the material B to eliminate residual stress to obtain a material C with a smaller volume, carrying out accurate dimension cutting on the material C to obtain a molding material D, carrying out smoothing processing on the molding material D to remove burrs and mantles generated by cutting, and carrying out surface processing to obtain the titanium material 3D curve imitation material with excellent tensile strength.

Inventors

  • TIAN WEI
  • LIU BEN
  • ZHANG CHAO
  • Cheng Lezhong

Assignees

  • 索罗曼(广州)新材料有限公司

Dates

Publication Date
20260508
Application Date
20240401

Claims (9)

  1. 1. The processing technology of the titanium 3D curved surface profiling material is characterized by comprising the following steps of: S1, peeling a titanium material; S2, performing hot rolling processing on the peeled titanium material to obtain a crude material A with a trapezoid cross section; S3, annealing the crude material A; s4, carrying out cold drawing accurate dimension processing on the annealed crude material A to obtain a material B with a trapezoid cross section and an arc-shaped side at one waist of the trapezoid; S5, annealing and cutting the material B to obtain a material C with a smaller volume; S6, cutting the material C in a precise size to obtain a molding material D; s7, carrying out smoothing treatment on the molding material D, and removing burrs and mantles generated by cutting; s8, performing surface treatment to obtain the titanium 3D curved surface profiling material; Wherein, the surface treatment in step S8 includes the following steps: Polishing the molding material D after the polishing treatment, soaking the molding material D in the treatment liquid M for 16-24 hours, taking out and cleaning, then soaking the molding material D in the treatment liquid N at 60-65 ℃ for 8-10 hours, taking out and cleaning, and drying to finish the surface treatment; the mass ratio of the molding material D, the treatment fluid M and the treatment fluid N after the smoothing treatment is 1:80-100:80-100; The treatment fluid M comprises, by mass, 0.4-0.6 part of sodium chloride, 0.7-0.8 part of calcium chloride, 0.4-0.5 part of potassium chloride, 0.7-0.9 part of sodium dihydrogen phosphate, 0.5-0.7 part of sodium fluoride, 0.002-0.003 part of sodium sulfide and 1000 parts of deionized water; the treatment liquid N comprises, by mass, 2-3 parts of cerium chloride, 5-6 parts of potassium permanganate solution with the concentration of 2.5g/L, 0.5-0.8 part of sodium tetraborate, 1-2 parts of lanthanum chloride, 1-2 parts of europium chloride and 200 parts of deionized water.
  2. 2. The process for forming a 3D curved surface profile modeling material for a titanium material according to claim 1, wherein in the step S2, the hot rolling process includes hot rolling cogging, hot rolling two-fire and hot rolling three-fire treatments.
  3. 3. The process for processing a titanium 3D curved surface profiling material according to claim 2, wherein the processing temperature of the hot rolling cogging is 840-860 ℃.
  4. 4. The process for processing the titanium 3D curved surface profiling material according to claim 2, wherein the treatment temperature of the hot rolling double fire is 980-1000 ℃.
  5. 5. The process for processing the titanium 3D curved surface profiling material according to claim 2, wherein the treatment temperature of the hot rolling three-fire is 840-860 ℃.
  6. 6. The process for forming a 3D curved surface profile modeling material for a titanium material according to claim 1, wherein in step S3, the annealing temperature is 660-680 ℃.
  7. 7. The process for forming a 3D curved surface profile of a titanium material according to claim 1, wherein in step S4, the cold drawing comprises a large curvature cold drawing and a small curvature cold drawing.
  8. 8. The process for processing the titanium 3D curved surface profiling material according to claim 7, wherein the tensile force is controlled to be 20-45MPa in the large-curvature cold-drawing forming process, the synchronous moving speed of chucks at two ends of a stretcher is controlled to be 15-35mm/s, and the cold-drawing is unloaded when the large-curvature cold-drawing radius of the annealed crude material A is consistent with that of a die.
  9. 9. The process for machining the titanium 3D curved surface profiling material according to claim 8 is characterized in that a section of the rough material A subjected to the large-curvature cold drawing treatment, which needs to be locally formed, is fixed in a chuck of a stretching machine, is locally clamped and fixed on a forming die through a tool to carry out small-curvature cold drawing, the pulling force is controlled to be between 12 and 20MPa in the small-curvature cold drawing forming process, the pulling force is kept constant, and the rough material A subjected to the large-curvature cold drawing treatment is unloaded when the local small-curvature radius of the rough material A is consistent with that of the die.

Description

Titanium 3D curved surface profiling material processing technology Technical Field The invention belongs to the technical field of titanium material processing, and particularly relates to a titanium material 3D curved surface profiling material processing technology. Background The titanium material is widely applied to the fields of aerospace, automobiles, medical instruments, chemical industry and the like, and is an important engineering material. The titanium material is mainly prepared by smelting, forging, rolling, extruding and other processes, and common products comprise titanium plates, titanium tubes, titanium rods and the like. The process not only can lead the titanium material to obtain ideal shape and size, but also can further optimize the performance of the titanium material by adjusting process parameters. In the processing process of the titanium material, the grain boundary sliding speed of the titanium at high temperature is increased due to improper temperature control of heat treatment, and sliding dislocation is rapidly stopped, so that the tensile strength of the titanium material is greatly reduced, and the titanium material is difficult to process and form. And different processing technologies can influence the structure and performance of the titanium material, such as stress concentration in cold drawing, annealing and other modes, and local stress is overhigh, so that the overall tensile strength is reduced. The reduction of the tensile strength of the titanium material can have adverse effect on the quality of the product, and the titanium material needs to be paid attention to and timely repaired or replaced by effective measures. Disclosure of Invention The invention discloses a processing technology of a titanium 3D curved surface profiling material, and belongs to the technical field of titanium processing. The processing technology comprises the steps of peeling a titanium material to remove surface defects, carrying out hot rolling processing on the peeled titanium material to obtain a rough material A with a trapezoid cross section, carrying out annealing processing on the rough material A to eliminate stress, carrying out cold drawing accurate dimension processing on the annealed rough material A to obtain a material B with a trapezoid cross section and a trapezoid waist with an arc-shaped side, meeting the requirement of curve profile, carrying out annealing and follow cutting processing on the material B to eliminate residual stress to obtain a material C with a smaller volume, carrying out accurate dimension cutting on the material C to obtain a molding material D, carrying out smoothing processing on the molding material D to remove burrs and mantles generated by cutting, and carrying out surface processing to obtain the titanium material 3D curve imitation material with excellent tensile strength. The invention aims to solve the technical problem of preparing a titanium 3D curved surface profiling material with excellent tensile strength. The aim of the invention can be achieved by the following technical scheme: a processing technology of a titanium 3D curved surface profiling material comprises the following steps: S1, peeling a titanium material to remove surface defects; S2, performing hot rolling processing on the peeled titanium material to obtain a crude material A with a trapezoid cross section; S3, annealing the crude material A to eliminate stress, wherein the tensile strength of the annealed crude material A is in the range of S4, carrying out cold drawing accurate dimension processing on the annealed crude material A to obtain a material B with a trapezoid cross section and an arc-shaped side at one waist of the trapezoid, wherein the requirement of the contour degree of a curved surface is met; S5, annealing and cutting the material B to eliminate residual stress and obtain a material C with a smaller volume; S6, cutting the material C in a precise size to obtain a molding material D; s7, carrying out smoothing treatment on the molding material D, and removing burrs and mantles generated by cutting; s8, performing surface treatment to obtain the titanium 3D curved surface profiling material. As a preferable embodiment of the present invention, in step S2, the hot rolling process includes hot rolling cogging, hot rolling two-fire and hot rolling three-fire treatment. As a preferable technical scheme of the invention, the treatment temperature of the hot rolled bloom is 840-860 ℃. As a preferable technical scheme of the invention, the treatment temperature of the hot rolling secondary fire is 860-980 ℃. As a preferable technical scheme of the invention, the treatment temperature of the hot rolling triple fire is 840-860 ℃. In a preferred embodiment of the present invention, in step S3, the annealing treatment is performed at a temperature of 680-750 ℃. As a preferred embodiment of the present invention, in step S4, the cold drawing includes a large c