EDM Broken Tap Remover Application in Automobile Industry

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EDM Broken Tap Remover: Essential Tool for the Automobile Industry


Automobiles are now an indispensable product in modern society, and a huge consumer group is constantly promoting the development and innovation of the automobile industry.


In the production and assembly of automobiles, bolts, screws and other connectors play an important role. Key positions such as engine fixation, suspension fixation, and tire fixation are indispensable. In these harsh working environments, screw breakage cannot be avoided.

This article introduces the application and case of the EDM Broken Tap Remover in the automobile industry on the aspect of automobile maintenance.



Processing Principles of EDM Broken Tap Remover

The EDM Broken Tap Remover operates based on Electrical Discharge Machining (EDM), a non-contact process that uses electrical discharges to erode the material of a workpiece. Here’s how it works:

  1. Electrode Setup: The tool electrode and workpiece are connected to the two poles of a pulse power supply.
  2. Discharge Process: When the gap between the electrode and the workpiece reaches a certain distance, the pulse voltage generates an electric spark discharge. This discharge creates a sharp, high temperature that vaporizes and melts the metal at the discharge point.
  3. Material Erosion: The molten material is carried away by the working fluid, which removes small solid particles formed by the discharge. This process repeats, eroding the material until the broken part is successfully removed.
  4. Continuous Operation: As the process continues, the electrode feeds towards the workpiece, gradually forming a shape corresponding to the tool electrode. This results in a precise, non-destructive removal of the broken fastener.


Case Study: EDM Broken Tap Remover in Automotive Maintenance

Target: Removal of a broken bolt from the engine guard of an Audi A6

Processing process: Choose a suitable processing installation location, install the EDM head, align the hexagonal electrode at the center of the bolt to be processed, and pass the coolant to make the water flow steadily through the processing location. Turn on the power of the host, adjust the processing current and the feed speed of the machine head, so that a stable and continuous point pulse is generated between the electrode and the workpiece. With the continuous progress of the discharge process, the metal debris from the electrolytic corrosion is carried away with the working fluid, and the processing part is electrocutted to form a hexagonal groove corresponding to the shape of the electrode. When the groove depth reaches about 10mm, stop processing, exit the electrode, and remove the handpiece. Then use a hexagonal wrench to take out the broken screw bolt. There is no damage to the thread after processing, and it can be installed and used after cleaning.



Usually, when the broken bolt is in the counterbore, it is difficult to take it out by ordinary methods. Then, the welding connection method is used to extend the contact part to the counterbore to unscrew the bolt. This method will cause certain damage to the thread. This method is not recommended for the connection part. EDM Broken Tap Remover is non-contact processing and will not damage the parts. A hexagonal groove is machined in the center of the broken object to quickly and easily take out the broken object. On the other hand, the head of the tapping machine can be flexibly rotated and installed without processing parts. The limitation of size and location can facilitate processing operations.



For automotive repair shops and manufacturers, the EDM Broken Tap Remover is a highly efficient, reliable, and cost-effective solution to the common problem of removing broken bolts, taps, and screws. This method ensures that delicate components can be repaired without compromising their integrity, saving time and reducing repair costs.

If you are facing the challenge of removing broken taps, drills, or screws, consider using the Portable EDM Broken Tap Remover for a practical and economical solution. Click here to learn more about this essential tool for the automotive industry.




Tag: EDM Broken Tap Remover