Manufacturing Methods For Producing Mass Production

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MANUFACTURING METHODS Pistons have been used by man for 100’s of years now, for different purposes (started with pumping). The concept of engine pistons came later, and that required the piston’s quality to change and hence the methods of manufacturing them had to be changed. Pistons have been manufactured all these years for automobiles by the use of subtractive manufacturing methods. A casted Aluminium or steel piston would be machined to the required surface finish, followed by forging Aluminium or steel into rods which are cut into an approximate size and machined thoroughly to give the shape and finish that was required. Figures As technology has improved over the years at a rapid rate, the traditional manufacturing methods are…show more content…
This method is considered mostly for the following reasons: • When a specific material is needed, that is not compatible with any of the additive manufacturing processes. • The End-use requirements of the parts specifically requiring this method of production. • Special cases where explicit tolerance are demanded for the part which only be achieved by removing material. The types of subtractive manufacturing processes are: 1) Stamping 2) Cutting and grinding 3) Settling 4) Filtering 5) Flaring 6) Boiling off processes As the main focus of introducing this topic is about piston manufacturing, following is the explanation of CNC machining which is the only method from the above used for producing pistons. Computer Numerical Controlled Machining: It is an end – to – end component manufacturing that is highly automated using CAD/CAM programs. CAD files are converted into the commands needed to operate a particular machining center. These commands then dictate what tools to use and when to use them in order to properly create the features of the desired part. Combining the use of CNC with 3D CAD, the manufacturing turnaround time for the part has dropped from 4-6 weeks to 1-2 weeks in some instances.
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