Design Product and Manufacturing Processes
Francho Garza Güell 27/12/2012
PRODUCT DESIGN AND MANUFACTURING PROCESS
INDIVIDUAL EVALUATION
1. EDM (Electrical discharges machine ) and WEDM ( Wire Electrical discharges machine).
• Fundamentals of process;
Principles of EDM Electrical Discharge Machining (EDM) is a controlled metal-removal process that is used to remove metal by means of electric spark erosion. In this process an electric spark is used as the cutting tool to cut (erode) the workpiece to produce the finished part to the desired shape. The metal-removal process is performed by applying a pulsating (ON/OFF) electrical charge of high-frequency current through the electrode to the workpiece. This removes (erodes) very tiny pieces of metal from the workpiece at a controlled rate.
EDM
EDM (electrical discharge machining) is a machining method primarily used for hard metals or those that would be impossible to machine with traditional techniques as milling, drilling, etc. One important limitation, however, is that EDM only works with materials that are electrically conductive. EDM can cut small or odd-shaped angles, intricate contours or cavities in extremely hard steel and exotic metals such as iconel, hastelloy, kovar, titanium and carbide. Sometimes referred to as spark eroding or spark machining, EDM is a method of removing material by a series of rapidly recurring electric arcing discharges between an electrode (the cutting tool) and the work piece, in the presence of an energetic electric field. The EDM cutting tool is guided along the desired path very close to the work but it doesn't touch the piece. Rapidly occurring consecutive sparks produce a series of micro-craters on the work piece and remove material along the cutting path by melting and vaporization. The constantly flushing dielectric fluid washes away the particles.
1
WEDM
Wire EDM machining (Electrical Discharge Machining) is an electro thermal production process in which a thin single-strand metal wire serves as the
PRODUCT DESIGN AND MANUFACTURING PROCESS
INDIVIDUAL EVALUATION
1. EDM (Electrical discharges machine ) and WEDM ( Wire Electrical discharges machine).
• Fundamentals of process;
Principles of EDM Electrical Discharge Machining (EDM) is a controlled metal-removal process that is used to remove metal by means of electric spark erosion. In this process an electric spark is used as the cutting tool to cut (erode) the workpiece to produce the finished part to the desired shape. The metal-removal process is performed by applying a pulsating (ON/OFF) electrical charge of high-frequency current through the electrode to the workpiece. This removes (erodes) very tiny pieces of metal from the workpiece at a controlled rate.
EDM
EDM (electrical discharge machining) is a machining method primarily used for hard metals or those that would be impossible to machine with traditional techniques as milling, drilling, etc. One important limitation, however, is that EDM only works with materials that are electrically conductive. EDM can cut small or odd-shaped angles, intricate contours or cavities in extremely hard steel and exotic metals such as iconel, hastelloy, kovar, titanium and carbide. Sometimes referred to as spark eroding or spark machining, EDM is a method of removing material by a series of rapidly recurring electric arcing discharges between an electrode (the cutting tool) and the work piece, in the presence of an energetic electric field. The EDM cutting tool is guided along the desired path very close to the work but it doesn't touch the piece. Rapidly occurring consecutive sparks produce a series of micro-craters on the work piece and remove material along the cutting path by melting and vaporization. The constantly flushing dielectric fluid washes away the particles.
1
WEDM
Wire EDM machining (Electrical Discharge Machining) is an electro thermal production process in which a thin single-strand metal wire serves as the