Machining Carbide

I've never burned threads that way, but I'm guessing the plastic holder would be threaded with a pitch to match the 'trode, and then he locked the ram so it couldn't retract while the 'trode was engaged in the threads, and then slowly manually twisted the 'trode into the work. The threads in the plastic holder let you screw the electrode right in at the correct pitch. I'm surprized it can be done in 15 min., I would've guessed longer. I'm still trying to figure out how the copper power wire doesn't get twisted up as you screw the electrode in? Maybe it just has a contact on the end of the electrode?

I've burned threads for bolts in many mold cavities by carbiding a tap drill hole, and then running an undersized threaded electrode of the right pitch down to the bottom of the hole, and orbiting it out to the major diameter you want minus the overburn. Kinda slow, and on a real coarse thread, you don't get a true thread form. One side of the thread gets burned away funny due to the helix of the thread. Good enough for bolts though. That's why it can be hard to mold plastic parts with coarse external threads unless you build an unscrewing mold. Simply burning threads into 2 slides will give you parting line mismatch of the thread form where they meet up. On fine threads you can hardly see it.

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Speaking of tungsten carbide cutter materials, how much do you know?

In fact, the tungsten carbide cutter material refers to the material of the cutting part. It works under high temperature and bears the pressure, friction, impact and vibration caused by cutting, so it should have the following basic properties:

1. The hardness of the tungsten carbide cutter material must be higher than that of the workpiece material.

2. It has sufficient strength and toughness to withstand cutting force, impact and vibration.

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3. Tungsten carbide cutter materials have good wear resistance to resist wear during cutting and maintain a certain cutting time.

4. Tungsten carbide cutter material has high heat resistance, so that it can maintain high hardness under the high temperature generated during cutting.

5. Tungsten carbide cutter materials should have good manufacturability, which is convenient for manufacturing tools.

When choosing tungsten carbide cutter materials, we should understand the performance and characteristics of commonly used tool materials, so that we can select suitable tool materials according to the performance and cutting requirements of the workpiece material.

The above is the relevant knowledge points of tungsten carbide cutters. I hope that the above content can be helpful to everyone. Thank you for reading. If you have any questions or want to consult, you can directly contact Xiamen Betalent Carbide Co.,Ltd, we will provide you with dedicated service and high-quality products.

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