Pure titanium two-step plastic deformation processing method
A technology of plastic deformation and processing method, applied in the field of two-step plastic deformation processing of pure titanium, can solve the problems of pure titanium fracture, unable to obtain large bulk fine-grained materials, etc. The effect of grain growth
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Embodiment 1
[0031] (1) Using grade 3 industrial pure titanium as the raw material, anneal the pure titanium block at 750°C and keep it warm for 1 hour;
[0032] (2) Use an electric spark cutting machine to cut the pure titanium metal block into a blank with a cross-sectional size of 10mm×10mm and a length of 140mm. The surface of the blank is treated by mechanical polishing to achieve a surface accuracy of 4 or above, and the surface of the blank is processed. The roughness should not be lower than Ra=1.25μm;
[0033] (3) Clean the surface of the blank with acetone, place the blank on a clean stainless steel tray, preheat it at a temperature of 250°C for 15 minutes, and then apply a graphite lubricant on the surface of the blank by dip coating. To be uniform, the thickness of the coating is about 0.2mm. After coating, the blank should be dried at a temperature of 250°C for 15 minutes. If there are defects such as falling coating, scratches, and peeling, it should be re-coated or washed of...
Embodiment 2
[0039] (1) Using grade 3 industrial pure titanium as the raw material, anneal the industrial pure titanium block at 750°C and keep it warm for 1 hour;
[0040] (2) Use an electric spark cutting machine to cut the pure titanium metal block into a blank with a cross-sectional size of 10mm×10mm and a length of 140mm. The surface of the blank is treated by mechanical polishing to achieve a surface accuracy of 4 or above, and the surface of the blank is processed. The roughness should not be lower than Ra=1.25μm;
[0041] (3) Clean the surface of the blank with acetone, place the blank on a clean stainless steel tray, preheat it at a temperature of 300°C for 10 minutes, and then apply graphite lubricant on the surface of the blank by dip coating. Evenly, the coating thickness is about 0.3mm. After coating, the blank is dried at 300°C for 10 minutes. If there are defects such as falling coating, scratches, and peeling, it should be re-coated or washed off and re-coated;
[0042] (4...
Embodiment 3
[0047] (1) Using grade 3 industrial pure titanium as the raw material, anneal the industrial pure titanium block at 750°C and keep it warm for 1 hour;
[0048] (2) Use electric spark cutting machine to cut pure titanium metal block into blanks with cross-sectional size of 10mm×10mm and length of 140mm, and perform surface treatment on the blanks by mechanical polishing to achieve surface precision above grade 4, rough surface processing of blanks The thickness should not be lower than Ra=1.25μm;
[0049] (3) Clean the surface of the blank with acetone, place the blank on a clean stainless steel tray, preheat it at a temperature of 250°C for 15 minutes, and then apply graphite lubricant on the surface of the blank by dip coating. Uniform, coating thickness is about 0.4mm. After coating, dry the blank at 250°C for 15 minutes. If there are defects such as falling coating, scratches, peeling, etc., it should be re-coated or washed off and re-coated;
[0050] (4) Use acetone to cl...
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