Due to the special use environment of medical devices, we have special requirements on their precision, safety, finish, sanitary conditions, etc., so when manufacturing medical devices, we should start from the source of strict requirements on manufacturers.In the process of metal medical equipment processing, the traditional sheet metal mechanical cutting processing mode has great defects in precision, safety and controllability. It is an inevitable trend for the industry development that the traditional processing mode is replaced by the optical fiber laser cutting machine.
First of all, laser cutting meets the requirements of precision, safety, finish and other aspects of medical specialty.Fiber laser cutting is the use of high power density laser beam scanning material surface, in a very short time to heat the material to thousands to tens of thousands of degrees Celsius, the material to melt or gasify, and then use high pressure gas to melt or gasify the material from the slit blown away, to achieve the purpose of cutting materials.This extremely high temperature cutting ensures the possibility of no secondary contamination during the machining process;Still have is, the cut surface of processing material is smooth degree is very good, can achieve a time to form a requirement, avoid material to form after two or more reprocessing, cause time and material loss.
Secondly, from the workpiece itself, medical devices and other mechanical parts are very different.It requires very high precision, without any deviation, and the laser cutting machine in the machine processing cutting to meet these requirements.
In addition, the slit generated by laser cutting is very narrow, and the laser beam is focused into a very small point of light, which makes the focal point reach a very high power density, and the material is quickly heated to the degree of gasification and vaporized to form holes.With the relative linear movement of the beam and the material, the hole continuously forms a slit with a very narrow width, which is generally 0.10-0.20mm in width.The very small slit ensures the high precision of cutting.
The production and processing of laser cutting machine is a contactless processing, the laser cutting head will not contact with the processed material surface, will not scratch the workpiece condition.For medical devices, surface smoothness is the most basic requirement. If the surface polishing process of the device can be minimized in the processing process, the production efficiency will be greatly improved.
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