• Ankit .S. More
• Dr. P.M.GEORGE
• Vishal .A. Pandya

Mistake proofing also known as Poke Yoke in which fool proofing is done so that the workpiece cannot wrongly loaded on the machine table. The most important part in an automobile is wheels, without it is not possible to move the automobile from one place to another. In the automotive industry, Alloy wheels are made from an alloy of Aluminium or Magnesium. Alloys are mixtures of a metal and other elements. Aluminium or Magnesium Alloys are typically lighter for the same strength, provide better heat conduction, and often produce improved cosmetic appearance over steel wheels. They generally provide greater strength over pure metals, which are usually much softer and more ductile. A wheel is a round-shaped block of a high-strength and toughest material. Its centre is bored of a circular hole through which an axle bearing is tightened about which the wheel rotates when a moment generated by engine is applied to the vehicle axle about its axis, wheel and axle. The most important part is the Pcd of wheel which is a critical part where the assembly takes place. So, in this project we found out what are different causes which are influencing on pcd error in order to get fit and interchangeability of mating parts and assembly by using tolerance analysis. Thereby, use of quality tools, statistical process control we found out what are the causes and their effects. So, that we would eliminate or control so that we can reduce rejection of alloy wheel due to pcd error. In correction of pcd error we work on the dimension and tolerances of alloy wheel. In the design, there are critical dimensions and geometries in the light of geometric dimensioning and tolerancing (GD&T) for e.g., concentricity, positional tolerance, etc. The condition here used in context to GD&T is the RFS condition which is known as Regardless of feature size. It is used when there is a need of very close tolerances and the eccentricity of wheel is so important so it used. Rotating parts requires eccentricity otherwise there will be imbalance in the wheel and axle connected to it. With the help of statistical quality control study and process capability indices, we are finding out the machine capability and process capability to identify the possible variation in the system. Data would be collected in the consecutive 50 sample size and 125 sample sizes to find out the Cm, Cmk, Cp and Cpk value. So, after further investigating cause and effect diagram and eliminating the root cause we have stopped the wrong loading of the wheel. And the rejection rate of pcd is reduced due to various implementation.

Fool proofing, PCD VMC M/c, Alloy wheel, Process capability, concentricity

"APPLICATION OF GD&T IN ALLOY WHEEL TO ANALZYE THE PCD CORRECTION ERROR", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 6, page no.c112-c127, June-2021, Available :http://www.jetir.org/papers/JETIR2106285.pdf

"APPLICATION OF GD&T IN ALLOY WHEEL TO ANALZYE THE PCD CORRECTION ERROR", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 6, page no. ppc112-c127, June-2021, Available at : http://www.jetir.org/papers/JETIR2106285.pdf