New Technologies In Lost Wax Casting.
The modern approach to the development of technological process of getting quality castings using Lost Wax Casting is based on intensive use of computers, required software and technological equipment for all cycles mining.
In most case, the production of model casting using method LVC is does not cause special issues. However, obtaining unique castings may have significant problems which solving using the traditional methods of development of process requires considerable material and time costs.
As practice shows, the majority of enterprises applying the method LVC, computer equipment for the development of the technological process is used very weakly. This is despite the fact that it is obvious now: competitive production can no longer do without effective means of automation.
The modern approach to the development of technological process for quality castings using LVC is based on intensive use of computers, required software and technological equipment for all cycles mining.
Workplace of technologist foundry is equipped with powerful computers for the work with modern design solid modeling software (Unigraphics, ProEngineer, Autodesk Inventor, etc.) which allow creating quickly three-dimensional model castings with LPS to source parts drawing, as well as related documentation.
Having prepared several options for three-dimensional models of castings, the foundry technologist verifies their computer-aided modeling of casting processes (Magmasoft, ProCast, LVMFlow, etc.) to visualize the process of filling forms of metals and subsequent solidification, as well as to identify the sites of shrinkage defects, hot and cold cracks, etc.
Depending on the complexity of obtained casting, search for the optimal design of IDPs - for example, using the CAM PL LVMFlow - takes no more than two weeks. Involving of technologist foundry is minimized: it remains only to specify the parameters of modeling after the program calculates and prepare the results for viewing, to select the best option.
Then a three-dimensional model is transferred to the programmer, which prepares the control program for CNC machines or rapid prototyping sets. Usually it is used for these purposes the same design program with the addition of CNC module. For example, Unigraphics and ProEngineer already have built CNC module, and for Autodesk Inventor it is required additional program SolidCAM, which fully integrates into Autodesk Inventor.
Nowadays it is developed and tested in practice two options (depending on the complexity of castings) automation of the technological chain - from creation the drawing details to obtaining high-quality castings.
The first version, built on low-cost software Autodesk Inventor Series + SolidCAM + LVMFlow, can successfully solve everyday problems and is suitable for most enterprises, applying the method of LVC. Second option, which kernel is powerful design software Unigraphics + LVMFlow, can solve problems absolutely of any complexity, including soluble at defense enterprises.
However, regardless of the applied engineering program, cross-cutting chain "technologist founder - engineer-programmer", which uses a single shell, allows to develop quickly the technology to produce high quality castings.
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