What is the Tooling cost in a plastic molding project?
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. […]
What is the production cost in an injection molding project?
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 [...]
What is the material cost in an injection molding project?
The material cost is determined by the weight of material that is required and the unit price of that material. […]
Introduction to inserts and installation methods
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: [...]
What is hole-making?
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. […]
Injection Molding – How to mold a Plastic part
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. […]
Introduction to CNC machinery and tools
A CNC machine tool is a powered mechanical device used to fabricate metal components of machines by the selective removal of metal. […]
Description of Injection Molding Barrel Heaters
Reaction injection molding is used in many industries for many types of parts. While bumpers for vehicles are produced in this process, most applications are for large, complex parts produced in quantities less than 5,000 units. […]
Advancing Mold Performance Using Hot Runner Technology
A quality hot runner system is one of the more important enhancements you can incorporate into a mold to improve molded part quality, reduce production times and remain price competitive. […]
Molding defects
Injection molding is a complex technology with possible production problems. They can either be caused by defects in the molds or more often by part processing (molding) […]