Gas Assist injection molding requires a reliable supply of clean nitrogen gas. This is accomplished by supplying the Gas Kit with nitrogen from pressurized bottles, a Nitrogen Generator, or from a central nitrogen system. […]
1.Control Systems and Accessories The Gas Assist injection molding process is made possible through finite control, regulation, and injection of high pressure, (up to 10,000 PSI) nitrogen gas. This involves a means to intensify gas pressure, control of the high-pressure gas, and delivery of the gas to the desired areas within the molded product. [...]
Selection of the proper material is crucial to part production. Designers should consider the mechanical characteristics, molding properties, and cost of the resin used. […]
The tooling cost has two main components – the mold base and the machining of the cavities. The cost of the mold base is primarily controlled by the size of the part’s envelope. […]
The production cost is primarily calculated from the hourly rate and the cycle time.The hourly rate is proportional to the size of the injection molding machine being used,so it is important to understand how the part design affects machine selection. Injection molding machines are typically referred to by the tonnage of the clamping force they [...]
The material cost is determined by the weight of material that is required and the unit price of that material. […]
Inserts are used in plastic parts, to allow the use of fasteners such as machine screws. The advantage of this is that since these inserts are made out of metal, they are robust. Further, machine threads also allow great many cycles of assembly and disassembly, Inserts are installed using one of the following methods: [...]
Hole-making is a class of machining operations that are specifically used to cut a hole into a workpiece. Machining, a material removal process, creates features on a part by cutting away the unwanted material and requires a machine, workpiece, fixture, and cutting tool. […]
Plastic has, quite literally, become the cornerstone of our society. We make so many things from plastic that it is hard to imagine what our lives would be like if it was never invented. […]
A CNC machine tool is a powered mechanical device used to fabricate metal components of machines by the selective removal of metal. […]