Acrylic, chemical name is polymethyl methacrylate, also known as plexiglass, due to its very high light transmittance (>92%), crystal-like transparency + half the density of glass, not brittle, and easy to dye, Easy to process and other advantages, it is often cut or carved into various shapes for different purposes such as handicrafts, outdoor advertising, protective covers, aquariums, ceiling partitions, etc.
Since the size of the acrylic sheet is generally relatively large, it is necessary to use a tool to cut it into a suitable size. Under normal circumstances, you can use a hook knife to cut the acrylic sheet, and when it is half cut, the acrylic sheet is directly broken by hand. The disadvantage of this process is that the edge is large, and further grinding is required later. It is not easy to cut special shapes such as shapes in one step; or use a saw to cut, but the speed should not be too fast, so as not to cause the acrylic to overheat and melt and deform due to friction; in addition, it can also be cut with a milling cutter, the advantage is that it can be cut for specific shapes, The incision effect is good and the efficiency is high, but it is easy to cause a certain loss.
At present, precision laser cutting is an ideal processing method for processing acrylic. With a professional control system, it can perform high-precision automatic processing of acrylic. Both efficiency and quality are very high. It is one of the most advanced processing methods today.
Laser precision cutting acrylic materials mainly have the following advantages:
(1) Good cutting quality: narrow incision width (generally 0.1-0.5mm), high precision (generally, the hole center distance error is 0.1-0.4mm, and the contour size error is 0.1-0.5mm), and the surface roughness of the incision is good (generally Ra is 0.1-0.5mm). 12.5～25μm), the kerf can generally be welded without secondary processing.
(2) Fast cutting speed: For example, using 300W laser power, the cutting speed of acrylic with a thickness of 8mm is 1.6m/min; the cutting speed of acrylic with a thickness of 2mm is 3.5m/min, the heat-affected zone is small, and the deformation is extremely small.
- Intelligent: The equipment equipped with precision cutting control card can quickly adjust cutting parameters through the board and software, seamlessly switch the processing method and processing content, with a high degree of intelligence and automation.