Machining Pei (ultem) is more difficult than PTFE because of its high hardness.The wear resistance of ultem parts has higher requirements for the cutting tools of CNC Machining center.We have calculated that after 3.5 hours of machining ultem, the tool wear is 0.03mm,Therefore, the parameters of machining center should be modified to compensate the tool wear size.
Of course, it is a good way to divide machining Pei into two steps. Rough machining and micro machining.Generally, engineers will reserve 0.5mm machining allowance for micro machining.
When glass fiber is added to ULTEM materials, such as ultem2100 and ultem2300, more care must be taken when machining the above two materials.
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