When customers place PO to us, our designer will make DFM (design for manufacturing). Upon approval of the DFM by the customer, our designer will proceed with Mould design. Typically, there are some issues that need to be communicated during the DFM and Mould design. Once the Mould design is approved by the customer, our buyer will source steel material, and begin the machining process, as well as source some Mould components. The Mould construction process usually takes 25 to 35 working days. After Mould is assembled by worker, the Mould will be install into the plastic injection Moulding machine. After injection Moulding, the project engineer will check the quality of plastic testing samples, such as to measure the dimensions by measurement device, and check the surface treatment finish. Occasionally, there may be flash/burrs in certain areas, as below photo shown.

Burrs and flashes mainly appear on contact surfaces – while the melt flows through the space between the moving mold and the fixed mold, the sliding part of the slider, as well as the gap of the insert and the ejector pin, and so on, excessive flashing or burrs are formed on the Molded product. Such flashing or burrs act as leverage during the plastic injection Moulding process to further increase the flashing or burrs, which leads to local depression on the Mould, causing flashing or burrs to enter a vicious circle. Therefore, if flashing or burrs are found in the very beginning, the Mould must be modified at the earliest possible time.