Cutting means shaving a material using a blade to make it into a required size or shape. We use blades to cut plastic in the form of film, blocks, and round bars.
Cutting allows for fine dimensional accuracy and the ability to cut a variety of shapes, making it possible to manufacture parts with complex shapes.
However, plastic processing products that require high precision must be carefully considered in terms of the properties of the material and the effects on the material that occur during processing. Heat deformation and rigidity during processing can cause dimensional tolerance deviations, and humidity and temperature can affect the dimensions of some materials.
For simple shapes, mass production does not require much cost and time, so mass production can be done inexpensively by cutting. For complex shapes, time and cost are required. Depending on the quantity, a 3D printer may be used for modeling, or a mold may be fabricated and formed.
There is also a method called secondary cutting, in which parts made by molding are machined in areas where precision is required, or additional drilling or square windows are needed.