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CNC machining services are becoming more and more popular due to their high precision, outstanding productivity, powerful capabilities and fiexibility. But when we do not maintain it properly or do some wrong operations, the product’s effciency and quality will be affected. What arethe most common CNC machine problems and errors ? In this article, we will discuss errors in CNC machining and how to solve them.
5. Common CNC Machine Errors & Solutions
CNC machines are valuable and duraable equiment used to complete various machining operations on workpieces. The most common problems with CNC machines are often caused by user often cáued by user error and poor maintenance. It is necessary to identify the pronlems and find solutions to solve these problems. Here, Limisys will present CNC machining problem most popular.
1.CNC Machine Error – Inapproriate Tools / Settings
Improper cutting tools, damaged and unsharpenend tool heads, or inappropricants cutting coolant/lubricants, these will cause poor surface finish of the part, and even re- cutting in the material, and at the same time increases the wear rate of the tool, In addition, when the feedrate is too low, the part will stay in the tool path for longer than necessary, resulting in a burnt workpiece.If the feedrate is too high or the cutter needs to be replaced, it is easy rough edges and bumps. Besides, wrong specifications can also cause tool burns.
Solution
- Replace the tool with a new one if it is faulty
- Select suitable tools and settings according to material properties
- Adjust settings to the appropriate for the specific cutting tool
2. CNC Machine Error – Lỗi Lập Trình
CNC machines are controlled by computers through programming languages, so there may be some pronlems due to errors in CNC programming. The lack of knowledge of G code, M code, CAD and CAM software, wrong programming such as wrong setup and data wil lead to product failure and wrong motion sequence. These problems can be dificult to diagnose for new operators.
Solution
- Comprehensive and complete training of new employees
- Experienced programmers monitor activities
- Provide detailed user manuals and íntructions for new operators
- In some rare cases, you just need to shutdow and restart the system
- Mechanically appropriate setting and alignment
3. CNC Machine Error – Bảo Trì Kém
If the CNC machine is not cleaned and lubricated, dirt and debris will accumulate on the positioning and clamping of parts and the output of the machine, thereby reducing accuracy and precision exactly. In addition, the poor outlet and blockage prevent air from circulating, leading to overheat of the spindle in the spindle in the process, and the machine is easily damaged.
Solution
- Clean and maintain the machine in use regularly
- Check coolant level or airflow
4. CNC Machine Error Rattle & Vibration
Vibration or chirping Too large in a CNC machine will reduce the qualitty of the part, affect the dimensiinal accuracy, reduce the life and durability of the tool, and even affect the life of the machine .There may be nóie to the workpiece or tool, you can listen if any noise is generated.
Solution
- Make sure the width or depth of cut keeps deviations below 1/1000 inch
- Adjust the rotation/minute of machining
- Use a leveling tool holder when using spindle speeds above 8,000 rpm
5. CNC Machine Errors – Clamping Problems
The workpiece or workpiece cannot be chuck or fixture that changess or vibrates during production. This can cause misplacement, uneven machining, faling pieces and even accidents or other problems
Solution
- Check and adjust hydraulic pressure
- Place jaws properly to clamp material tightly
- Check if the lubricant is enough
- Make sure the piece is in place
- Check other settings and devices
Contact to supply robot spare parts – repair CNC machines
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