The key to successful grinding is the proper selection and proper application of the cutting fluid. Generally, the longer the arc of cut, the greater the need for more of a wetting/cooling, synthetic fluid, as opposed to the smaller arc lengths where highly lubricating fluids with EP (Extra Pressure) additives will be necessary. Companies are [...]
Managing heat and delivering resin at a consistent temperature is the role of the nozzle. There are several features that one should consider before making a nozzle choice. It is important to maintain consistent heat due to the temperature processing window unique to today's highly engineered resins. Engineered resins have an ideal target temperature that [...]
the decision to buy new equipment is a smart business decision that coincided with customer demand. Two markets/industries have been growth sectors for us with regard to tooling: medical/healthcare and packaging/caps/closures—both of which demand the ability to produce rounds with consistent accuracy, […]
Often, in order to decrease tooling costs, a long-established design approach is specified for several mold builders to quote, and the lowest bid wins. However, a different mindset could yield much greater savings not only at the mold build and initial production launch, but also over the lifetime of the tool. […]
One way to improve the success of molds being transferred is to offer sampling/tryout capabilities to your customers. Once you accept a tool transfer, […]
Some mold builders will elect to buy the hot runner components, machine the hot half plates and install the system themselves to save money. In these cases, there are two options available. […]
A key component in any hot runner system is the nozzle or drop. Nozzles fall into four main categories: torpedo, valve gate, edge gate and multi tip. Edge gate nozzles are used to gate on a part at 90 degrees to the parting line. There are two varieties of such nozzles. […]
market globalization has resulted in OEMs’ current strategy of launching new products on a global basis. In order to reduce costs and to guarantee high quality at all locations, the trend is for OEMs to separate the tooling from the injection molding, […]
Compression molding is a method of molding in which the molding material, generally preheated, is first placed in an open, heated mold cavity. […]
Sheet/film extrusionBlow extrusion of plastic filmFor products such as plastic sheet or film, the cooling is achieved by pulling through a set of cooling rolls (calender or “chill” rolls), usually 3 or 4 in number. Running too fast creates an undesirable condition called “nerve”- basically, inadequate contact time is allowed to dissipate the heat present [...]