A kind of turning method of porous metal
A porous metal and turning technology, which is applied in the field of cutting processing of porous materials, can solve the problems affecting the performance of porous metal parts and the reduction of porosity, so as to achieve effective control, reduce pore clogging and easy removal
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Embodiment 1
[0021] A kind of turning method of porous titanium metal, workpiece such as image 3 , where the big end d1=24.8mm, its length is 60mm, the small end d2=23mm, its length is 40mm, the diameter of the blank used is 30mm; the porosity is 60% with high hardness paraffin (hardness Shore D 55-60) ~70% of the porous titanium metal billet is filled and solidified, fixed and clamped by the upper clamp 4 of the lathe spindle box 5, and turned, and the processing area near the tool is brought to -170 ° C ~ - 180 ° C with liquid nitrogen and maintained during the entire processing process When processing the porous metal part 1, the large end is processed first, and the blank is processed to a diameter of 24.8 mm. The first step is rough turning. The tool material is made of hard alloy YG8. The outer circle is turned from Φ30mm to Φ25.1mm, and the axial length of the machining is 110mm. This turning step is divided into two steps. The first step , use the turning tool 2 to turn 110mm fro...
Embodiment 2
[0023] A kind of turning method of porous titanium metal, workpiece such as image 3 , where the big end d1=25.6mm, its length is 60mm, the small end d2=23.6mm, its length is 40mm, the diameter of the blank used is 30mm; the porosity is 75mm with high hardness paraffin (hardness Shore D 55-60) % to 85% of the porous titanium metal billet is filled and solidified, fixed and clamped by the upper clamp 4 of the lathe headstock 5, and turned, and the processing area near the tool is brought to -180 ° C ~ - 190 ° C with liquid nitrogen and processed throughout the process Maintain during the process, the processing process, the tool material used and the requirements of the tool are the same as in Example 1. Its parameters are shown in Table 1. After testing, it is shown that there is little clogging on the surface after processing, and the average porosity reduction caused by clogging of the pores on the processed surface is 6.2%. .
[0024] Table 1 Turning parameters of porous t...
Embodiment 3
[0027] A kind of turning method of porous titanium metal, workpiece such as image 3, where the big end d1=26mm, its length is 60mm, the small end d2=24mm, its length is 40mm, the diameter of the blank used is 30mm; the porosity is 65%~ 75% of the porous titanium metal billet is filled and solidified, fixed and clamped by the upper clamp 4 of the lathe spindle box 5, and turned, and the processing area near the tool is brought to -175 ° C ~ - 185 ° C with liquid nitrogen and during the entire processing process Keep, the machining process, the tool material used and the tool requirements are the same as in Example 1, and its parameters are shown in Table 2. Tests show that there is little clogging on the surface after machining, and the average porosity reduction caused by pore clogging on the processed surface is 4.9%.
[0028] Table 2 Turning parameters of porous titanium metal in Example 3
[0029]
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