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A jewelry model is a master design that is copied to make many similar pieces of jewelrey. The model may either be a piece of actual finished jewelrey or a low-cost blank fashioned from base metal. In either case, the model is used to create the casting mold from which all subsequent pieces are made. Prefabricated models are available from a ...
Kalevala jewelry is manufactured in the company's factory in Konala. [4] The manufacturing method is a combination of craftsmanship and modern techniques. [18] [4] It starts with the 3D modeling of a wax mold, though some of the wax molds are still made by hand. [2] The wax molds are collected into a mold tree that is immersed in plaster.
A Baldwin 6-axle locomotive kit cast in resin in HO Scale. Due to aggressive nature of most compounds used for casting and the high temperature of the reaction the mold gradually degrades and loses small details. Typically, a flexible mold will yield between 25 and 100 castings depending upon the size of the part, the intensity of the heat ...
The direct molding method is to make the wax material into the same wax mold as the casting by hand or other tools; the indirect molding method is to make the wax mold through the mold. The direct molding method requires craftsmen to have a high technical level, otherwise the quality of castings cannot be guaranteed.
A wax pattern used to create a jet engine turbine blade. Castings can be made from an original wax model (the direct method) or from wax replicas of an original pattern that need not be made from wax (the indirect method). The following steps describe the indirect process, which can take two to seven days to complete.
Wax patterns are used in an alternative casting process called investment casting. A combination of paraffin wax, bees wax and carnauba wax is used for this purpose. In this case the wax "pattern" is melted out from the mould cavity which is normally a rigid plaster like material rather than sand, so the wax "pattern" can only be used once. [5]
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