Many people have seen the following animation from Internet celebrities: Put two iron blocks together and press them lightly with your fingers, and they will fit together perfectly, which makes everyone amazed!
In fact, what is shown in the animation is a corresponding part processed by a slow wire machine, which is very common for mold industry partners.
What we’re going to talk about today is a real technical subject. How to use a slow wire machine to process such a perfectly fitted fitting?
To put it simply, the key to mounting parts processing skills is to choose the appropriate offset, appropriate mounting space and the need to clear sharp corners.
Processing steps for parts to be assembled:
1. Cutting test with standard parameters
Use standard settings to test cut a 10X10 punch and measure dimensions. For example, if the offsets used are 0.223, 0.164, 0.134, and 0.129, the measured size is 10.01 and the front size is 0.005 too large.
2. Adjust the offset and process the punch
The offset should be adjusted to 0.218, 0.159, 0.139, 0.124, then the punch size processed according to this offset should be standard size 10.
3. Calculate machining die offset
The offset of the punch is 0.218, 0.159, 0.139 and 0.124, and the offset of the female die should be minus the one-sided fit gap. Typically, the clearance for a tight fit is 0.002 per side and the clearance for a sliding fit is 0.005 per side. The adjustment clearance can be subtracted directly from the offset or entered in CLE.
4. Concave mold processing
If the adjustment clearance is 0.005, the cutting die offset is 0.213, 0.154, 0.134, 0.119.
5. Cooperation
Insert the male mold into the female mold. Note that the part must be placed vertically during mating. The mating gap should be 0.005, and the mating effect should be very smooth.
Daguang focuses on providing solutions such as precision CNC machining services (3-axis, 4-axis, 5-axis machining), CNC milling, 3D printing and rapid prototyping services.
