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Joining is a very important production technique in the field of jewelry production. Therefore it is useful to know, what kinds of different joining techniques are possible. This paper will give you a rough overlook on joining techniques as well as some tips and tricks to do a good joint between platinum and platinum, and between platinum and gold. Which technique to prefer depends on the worker skill and on the available equipment.... (2004) Complete Story
As in all manufacturing processes, evaluations and systematic process controls must be applied to platinum casting. As a caster you should constantly improve the quality of product by logical evaluation, technical innovation and process control. Below is a chronological list and description of the necessary procedures for a successful platinum cast....
(2004) Complete Story
Platinum casting is different from gold or silver casting, and insufficient preparation and understanding of the process can still lead to many hours of frustration. Success depends on having good, functional equipment and process control, and learning all you can about the process before you cast your first flask.... (2003) Complete Story
The principle of bi-metal casting is really very simple: A wax model is invested, cast and finished. A secondary wax is created, which is going to become part of this piece. The wax is attached to the first casting, re-invested and the metal is cast on, thus creating a piece that is made with two metals. It is recommended that mechanical fastening devices, such as plugs, tracks etc. be worked into the design. The piece is then finished as usual.... (2003) Complete Story
Platinum casting defects are often very difficult to characterize due to the intrinsic complexity of the investment casting process. All defects will fall into one or more of the established seven categories of casting defects. The proper identification of a particular defect is the prerequisite to correcting and controlling the quality of platinum castings. It is contended that a system of defect identification should be based solely upon morphological criteria with no prior assumptions relating to the cause of the defect. The nature of a casting defect can only be determined by correctly categorizing the shape, appearance, location and dimensions of the defect. The importance of a controlled and comprehensive defect analysis program is advanced. Once appropriately classified, the possible causes can be examined and the corrective action can be taken..... (2005) Complete Story
