In the competitive arena of moldmaking, shops must produce molds quickly and within tolerance to remain profitable and attract new business. Technological advances in high speed spindles, sophisticated programming methods and high-performance cutting tools allow shops to save time and improve accuracy.
A new machine may not be needed— just changes in the process.
Semco Plastic Company Incorporated (St. Louis, Missouri) manufactures an extensive line of custom injection and blow-molded thermoplastic and thermoset products from molds that are designed, machined and built at its in-house moldmaking facility.
Many CMMs today are outdated with respect to the needs of today's quality standards and production requirements. In most cases, the original CMM machine hardware has the built-in precision to accurately provide the ongoing sophisticated measuring demands. The problem is that the software and even most of the upgrades provided with the original machines may not be adequate.
Prior to toolsetter installation, Desenco personnel report that it was 'almost impossible' to attain accurate Z depths and repeatability in the Z axis.
Entrapment of gases during plastic injection is a problem that continues to challenge the design capabilities of moldmakers. The increasing complexity of tooling demanded by today's manufacturers dictates that many areas inside molds are quite difficult to vent adequately.