There is another option—an electrically actuated valve gate system. This system combines the strengths of both pneumatic and hydraulic hot runner technologies. While both traditional systems are highly effective technologies in their own right, for some customers an electric system represents the best of both worlds. […]
Hydraulic actuated valve gate systems make up less than 20 percent of the market. While they have a lower market presence in comparison to pneumatic systems, […]
Pneumatic actuated valve stem technology currently makes up over 80 percent of the market. It is the most widely used technology in the medical, technical and closures markets.There are several reasons why pneumatic systems are so widely applied. The technology uses a medium that is readily available in molding facilities—compressed air—to move the valve system. [...]
The most significant breakthrough in flow simulation technology was the advent of true 3-D solid element analysis in 1999. […]
The goals of flow analysis can range from basic knit-line location prediction to measuring the exact displacement due to anisotropic conditions on a low-tolerance part. When performed early in the design process, users of the technology save thousands of dollars in startup costs, and thousands more by improving part quality, eliminating downtime and reducing cycle [...]
Some observations for improving scan quality through part mounting and orientation are given below: […]
Research has shown that strict RE methodologies may be devised for any classification of parts as opposed to a customized approach for each part (analogous to group technology manufacturing). […]
The best results in terms of accuracy and quality of surface finish are obtained using contact RE systems. Contact systems have several fundamental advantages over noncontact systems: treatment of surfaces to prevent reflections is not required, […]
Applications of RE in manufacturing are widespread. There are many instances in which an existing part or prototype requires reproduction, but lacks the computer data necessary to do so with accuracy and repeatability. […]
Reverse engineering (RE), the process by which an existing item is identically reproduced, becomes necessary when a physical prototype exists, but an accurate geometric data file of the part does not. […]