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Essay / Photochemical Machining Essay - 667
Other issues to consider when introducing the techniques into an industryBelow are other factors that need to be considered. Each factor is most important for its type of micro-manufacturing process.Chemical Machining and Photochemical MachiningLife Cycle - The life cycle of a photochemical machining tool is estimated to be around 450 cycles. For high volume production, it is often advisable to produce a negative master film, as well as a positive film to be produced quickly by a contact method. It is advisable, when the design of a component allows it, to avoid manufacturing a tool producing large areas of photoresist removal. If the work material has areas of exposed metal, the machine will have a faster etch rate than the cutting lines, which can lead to tolerance issues as well as faster contamination of the etch chemistry. CAD – An often overlooked factor when introducing this type of integration process into the manufacturing industry is having staff trained in the appropriate operational software, such as CAD. When a 2D CAD image is created from the desired design, it should be borne in mind that this will also involve calculating bending tolerances, including half engraving details and scaling. To enable the etching process, an etch compensation factor must be taken into account. This includes drawing the exterior profile larger than the size of the finished component, meaning holes and slots must be smaller to compensate. The degree of fit is directly proportional to the thickness of the metal being processed.Electrochemical forming and machiningEnvironment – with all the advantages that this process brings to it, it also has its disadvantages. ECF and ECM are known for their environmental...... middle of paper ...... over the concentration of power can burn flesh. Strict standards are in place for the safe use of lasers and laser systems. The backbone of any safety program is the ongoing efforts of management and employees to follow established safety protocols. Only by strongly supporting education and training can this objective be achieved. The simple use of safety devices and protective eyewear can significantly reduce risks to workers. Precision – Improving precision has been a central topic in laser beam machining. Short pulses over a longer period have greater potential to achieve higher accuracies in dimensional control. This is due to the very small amounts of material that can be pulsed away and the very small damaged or heat affected area on the surface. Focus on precision brings more detail and reliability to the laser beam machining process.