1results about How to "Increased dimensional tolerances" patented technology

The present application relates to core-pulling rivet titanium alloy wire processing technical field, specifically to a kind of preparation method of TB9 titanium alloy large disc round wire for core-pulling rivet.The method first obtains the TB9 titanium alloy ingot with a diameter of 500-700mm, then the TB9 titanium alloy ingot is forged into a bar blank with a diameter of 290-310mm at 1100-1200 ℃, then the TB9 titanium alloy bar blank is rough forged into a bar blank with a diameter of 130-150mm at 1000-1100 ℃, then the TB9 titanium alloy bar blank is precision forged into a bar blank with a diameter of 95-105mm at 850-950 ℃, then the TB9 titanium alloy bar blank is continuously rolled at 780-900 ℃, and then quenched after rolling, to obtain a large disc round wire blank with a diameter of 7.5-15mm, then room temperature drawing, then high-temperature solid solution, then room temperature drawing again, then peeling, polishing and coating treatment.At this time, the alloy cross-section structure is fine and uniform equiaxed structure, the longitudinal section structure is elongated fibrous structure, and after aging treatment, it meets the mechanical property requirements of AMS4957F for TB9 titanium alloy wire.