3d titanium wire


The reason:
1) titanium grey: center 3d titanium wire loose, segregation; Residual serious shrinkage cavity; Non-metallic inclusions to exceed bid.
2) uneven tube billet heating, the temperature too high or too low, the heating time is too long.
3) perforated area: head titanium tubing price badly worn; Improper punch parameter adjustment; Perforation roller aging.
Inspection found: titanium tube surface are not allowed to exist in the fold, in the pipe end should be grinding or cutting, grinding thickness at the actual value shall not be less than standard requires the minimum; Tong long fold to waste. Titanium rod hot extrusion was conducted in raising the temperature of powder extrusion, make products to achieve full densification. Hot press method can accurately Titanium welding pipe control the material composition and internal organization structure of the alloy. Hot press method can be divided into the package set of hot extrusion method with a bag set of hot press method in two forms. For active metal titanium and titanium alloy powder, to prevent product oxidation, coating hot press method is often adopted. At this point, a good bag, first to powder or compact are installed inside the bag, after drainage and sealing, put it in extrusion machine, the hot extrusion.
When used by the coating material ti6al4v eli should have good thermoplastic, not to put material to form the whole gold, hot press after anaerobic easy tear, convenient sources, low cost. A few more is low carbon steel or stainless steel sheet. Titanium rod hot extrusion process is the first forming, sintering and hot titanium round bar working together, thereby directly obtain better mechanical properties of diamond products. The second process is the titanium and titanium alloy powder forming. After sintering, preparation of sintering billet by hot extrusion (for Ti - 32 mo alloy, the temperature is 1000-1100 ℃), the performance of titanium alloy products. Titanium rod third process is to fill in blank extrusion process, this is a kind of important method can be used for making complicated profile products. The process includes: prepare package set of cavity, and add the cavity size according to the size of final products needed for extrusion coefficient ti6al4v determined; Set. Put the powder into the cavity and the percussion compaction; Time, exhaust and sealing bag; Under certain temperature and extrusion ratio on extrusion; Strip coating.