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The Method Of Eliminating The Accuracy Of The Workpiece After Processing Is Seriously Out Of Tolerance, And The Method Of Eliminating The Fault Of The Broken Fuse


It should be emphasized that if the fuse is broken, the fault must be checked, and after the fault is removed, a new fuse of the same specification can be replaced.

It is not allowed to directly replace the fuse without checking the fault, in order to prevent damage to the device and cause a larger accident.

No abnormal phenomenon was found, and the machine tool coordinates also returned to the origin (end point) after processing, but the accuracy of the workpiece was seriously out of tolerance, which was often caused by the following reasons.

  • Deformation of the workpiece; consideration should be given to eliminating residual stress, changing the clamping method and making up for it with other auxiliary methods.
  • Interference of moving parts. If the worktable is strongly rubbed by protective parts (such as “skin tiger”, cover, etc.), or even withstood, resulting in out of tolerance, you should carefully check whether the movement of each component interferes.
  • The matching accuracy and clearance of the screw nut and the transmission gear are out of tolerance, and the movement accuracy of the worktable should be checked.
  • The verticality of the X and Y axis worktable carriages is out of tolerance, and the verticality of the X and Y axes should be checked.
  • The guiding accuracy of the electrode wire guide wheel (or guide) is out of tolerance, and the working state and accuracy of the guide wheel (main pulley) or guide should be checked.
  • Various parameters change too much during processing, and measures such as power supply voltage regulation should be considered.

Eliminating The Accuracy Of The Workpiece After Processing Is Seriously Out Of Tolerance

When the workpiece’s accuracy is out of tolerance after processing, it can be a result of various factors, such as machine errors, tool wear, incorrect setup, or material inconsistencies. To eliminate this issue, you can take the following steps:

  • a. Check the machining process: Review the machining process and ensure that all parameters, such as cutting speed, feed rate, and depth of cut, are correctly set according to the material and tooling being used.
  • b. Inspect the machine: Regularly calibrate and maintain the machining equipment to ensure it is operating accurately. Check for any mechanical issues, backlash, or inaccuracies in the machine’s movement.
  • c. Verify tool condition: Make sure the cutting tools are sharp and in good condition. Dull or worn-out tools can lead to poor surface finish and dimensional inaccuracies.
  • d. Material inspection: Check the material for any defects or inconsistencies that may have occurred during the manufacturing or supply process.
  • e. Quality control: Implement stringent quality control measures at various stages of the machining process to detect and correct errors early on.

Eliminating The Fault Of The Broken Fuse

If a fuse blows or breaks during the manufacturing process, it can be due to several reasons, including electrical overload, short circuits, or faulty equipment. To address this issue:

  • a. Identify the cause: Investigate the cause of the blown fuse by examining the electrical circuit and the equipment connected to it.
  • b. Repair or replace faulty equipment: If the blown fuse is a result of a faulty machine or equipment, repair or replace the damaged components.
  • c. Check for short circuits: Inspect the electrical system for any short circuits and address them appropriately.
  • d. Verify electrical load: Ensure that the electrical load on the circuit is within the fuse’s rated capacity to prevent overloading.
  • e. Implement safety measures: Consider using circuit breakers or protective devices to prevent overloads and short circuits.

In both cases, it’s essential to follow proper safety protocols, conduct thorough inspections, and involve qualified professionals if necessary. Regular maintenance and adherence to best practices in manufacturing and electrical systems can help prevent such issues from occurring in the future.

Fuses are installed in backup electrical parts such as machine tool electrical appliances, high-frequency power supplies, and numerical control systems. According to the overall design of the machine tool, the fuses of each part should protect themselves (break the fuse) in the event of a short circuit or overcurrent in that part, and generally should not affect the fuses of other parts. In this way, the machine tool can preliminarily determine the general scope of the fault based on the broken fuse position.

Generally speaking, first measure the resistance value of the lower load side (the load side of the fuse) from the broken fuse, then measure the resistance value between the load end of the fuse and the machine tool or the neutral line, and then go deep into the line to check step by step, the so-called “” The method of “following the vine and touching the paw” is more convenient, but it is often possible to find short-circuit traces immediately when the relevant part is opened, which is easier to solve.

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