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Some differences between CNC processing plastic parts and CNC machining metal parts (3)
Another welding here also say a sheet metal problem. A lot of plastic low melting point, you can bend. A metal stick test hot on the need to bend the location, and then bending the plate can be. Here to pay attention to grasp the temperature, do not burn through. Still that thing! experiment! experiment! experiment! Dragging your design, product manager, purchasing a field experiment! You have to go back and say that your technology will not work, you set the craft down experiment time. Do not work hard and then tear up. The key is not to tear yourself in with others, meaningless.
Finally talk about drilling this thing. I do not know what you generally use the connector. Bolts certainly. So the question is, metal bolts or plastic bolts?
Precautions small metal bolts, mainly when tapping two things
Clean up the workbench, especially with tapping machine! A little oil can make your job all white. Plastic oil is directly infiltrated. Dishwashing simply rubbed clean, steel ball, all kinds of fried chicken invincible decontamination sponge, bath towel or even I have tried, the only way is to take advantage of infiltration is not deep, and quickly knife program. However, the finished surface will be destroyed. You say this job is not thankless?
2. Standard connectors, tapping holes, slightly smaller than the metal parts. Such as m6 hole, remember correctly, then the general metal hit is 4.9 ~ 5.1. Pom, I generally use 4.7 or 4.8. Hit twice disassembly hole waste. And design time must pay attention, at least 5 thread depth. The reason is still soft, the first two laps before the thread whether manual tapping or machine tapping, no use. Tooth itself soft, the installation of a slight deviation from the beginning of the first tooth broken, and then all the way chain reaction. There is a way to solve this problem, the silk sets, wire sets. That looks like a spring-like, both inside and outside the wire stuff. First open the bottom hole, not tapping, wire sets hard screwed in. After the bolt how to use how to use, do not delay. However, there is a pit here. The upper sleeve means reaming, M6 M8 changed. Reaming means that the hole must be shifted in and whether it will interfere with the rest of the interior, which is based on the design of the foundation. And holes to the edge of the lu distance experiment. Otherwise, the actual process is very easy to hole.