Stamping Parts Have Any Defects

  • Injection mold processing refers to the processing of molding and blank-making tools, in addition to shear molds and die-cutting molds. During processing, defects sometimes occur. Here are some small ways for Plastic Injection Parts manufacturers to reduce the processing defects of injection molds.

    First, the reasonable use of cooling and lubricating fluid, play the three major roles of cooling, washing and lubrication, keep the cooling and lubrication clean, so as to control the grinding heat within the allowable range, so as to avoid the thermal deformation of plastic parts during processing.  Improve the cooling conditions during grinding, such as adopting oil-soaked grinding wheel or internal cooling grinding wheel.  When cutting fluid is introduced into the middle of the grinding wheel, cutting fluid can directly enter the grinding area and play an effective cooling role to prevent the surface of plastic parts from burning out during processing.

    Second, the grinding dosage should be reasonably selected, and the fine grinding method with smaller radial feed and even precision grinding should be adopted.  If the radial feed rate and grinding wheel speed are appropriately reduced and the axial feed rate is strengthened, the contact area between the grinding wheel and the workpiece is reduced and the heat dissipation condition is improved, thus effectively controlling the rise of surface temperature.

    Three, Stamping Parts to reasonable choice and dressing of grinding wheel, using white corundum grinding wheel is better, its performance is hard and brittle, and easy to produce new cutting edge, so the cutting force is small, grinding heat is small, in the grain size using medium grain size, such as 46 ~ 60 mesh is better, in the grinding wheel hardness using medium soft and soft (ZR1, ZR2 and R1, R2), namely coarse grain size, low hardness grinding wheel, good self excitation can reduce cutting heat.

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