Tolerances are probably the most important areas to be checked. When this project is quoted, the tolerance will be checked and question. Before designing, the final drawing released with complete tolerance should be required. because a large portion of the machining cost is directly related to the tolerance.
In order to achieve the shortest possible molding cycle, special cooling methods, added ejection features, special mold material and lubrication will be considered, on the other hand, some other elements may also have a significant impact on the molding cycle. For example Differences in the plastic, wall thicknesses, draft angles, methods of gating and so [...]
As for anticipated molding cycle, no matter our customers or mold makers always want to build a mold with shortest possible molding cycle. But making cost is a real problem. How to find a suitable solution to meet our customer requirement at a competitive price will be very important to every mold maker.
When any product contains even small portions of degraded material, it must be discarded, not only because of poor appearance of the product but physical properties may have been lost and the product will not perform as expected.
how to identify thermoplastic material degradation? I want to say when all thermoplastic materials change color to yellow or brown at certain high temperatures over a length of time. it will be shown, And the ultimate form of degradation is when the plastic becomes charred and black.
Of course, a mold designer should know which plastic characteristics will directly affect your mold design, for example: […]
Occasionally, a mold maker try to offer a low price for a new mold project to customer as the result of a sales policy. For example, to win a new customer or to enter a new field of product in which the mold maker has little or no experience. Regardless of the low price, at [...]
As a professional mold designer, before designing, it is very important to understand all the parameters when quoting a price, if not, you may design a mold that greatly exceeds the quoted price. Note that the purpose of any industry is to make money with their product.
In all industries, there is a common practice. Before a mold order is placed, at least three quotation from different mold maker are on costumer’s desk. So your mold price must be competitive with that quoted by other mold makers.
I think maybe the above information is incomplete, usually we have to have a meeting with our customer to answer some other questions, I mean by dialogue. […]