Mold parts processing

Detailed analysis of machining methods and processes for mold parts
The processing methods and processes of mold parts are the knowledge brought to us today. Many people do not know how mold parts are processed. They mainly use methods such as washing, grinding, and planing for processing. Let's take a look below.
Processing methods for mold parts
1. Washing processing: mainly milling the plane with a milling cutter
2. Grinding processing: mainly using grinding wheels to grind the surface of the workpiece.
3. Planing processing: mainly using a planer to plane the surface of a workpiece.
4. Special processing: It is a method of directly utilizing electrical energy, chemical energy, etc. for processing.
5. CNC machining: It mainly controls the machine tool through digital information to generate relative motion between the machined parts and the cutting tools that meets the requirements, and realizes the machining of the parts from the surface.
Mold parts processing technology
1. The geometric accuracy (roundness, cylindricity) of a journal should generally be limited within the range of diameter tolerance points. When high precision is required for geometric shapes, the allowable tolerances can be specified separately on the part drawing.
2. The surface roughness can vary depending on the surface working position of the part. For example, the surface roughness of the support journal of a regular machine tool spindle is Ra0.160.63um, and the surface roughness of the matching journal is Ra0.632.5um. As the machine speed and precision increase, the surface roughness requirements for shaft parts will also become smaller and smaller
3. The dimensional accuracy of the shaft neck is the main surface of shaft parts, which affects the rotational accuracy and working state of the shaft. The diameter accuracy of the journal is usually IT69 according to its usage requirements, and the precision journal can reach IT5.
4. Position accuracy mainly refers to the coaxiality of the mating journal of the assembled transmission component relative to the supporting journal of the assembled bearing, usually represented by the radial runout of the mating journal to the supporting journal; According to usage requirements, it is specified that the high-precision axis is 0.0010.005mm, while the general precision axis is 0.010.03mm. In addition, there are requirements for coaxiality of the inner and outer cylindrical surfaces, as well as perpendicularity between the axial positioning end face and the axis.