Metal cutting usually encounters the following problems:

1. Selection of materials: different metal materials will have different characteristics when cutting, and different kinds of metal materials need to use different kinds of cutting technology to ensure the cutting effect.

2. Cutting quality: Cutting quality is usually affected by cutting speed, cutting depth, cutting temperature and other parameters. If these parameters are set improperly, it is easy to lead to inaccurate and rough parts cut out.

3. Tool wear: With the use of tools, tools will inevitably wear, which will not only affect the cutting quality, but also increase the frequency and cost of tool replacement.

4. Safety issues: Metal cutting usually requires the use of high temperature, high pressure technology, such as not paying attention to safety, easy to cause fire, explosion and other dangers.

5. Waste disposal: Metal cutting will produce a large amount of metal waste, if not handled in time, not only will affect environmental health, but also waste resources.