Mahle GMBH

The Grinding Mechanism on Quick-Point Grinding Wheel Wear and Effects on Surface Quality

“…By means of a relief angle (Fig. 1) ( 0.5 0.5       ) created by tilting the grinding wheel to the horizontal workpiece axis, the contact zone between wheel and workpiece is reduced from a contact line to a contact point [1]. The contact zone mainly distributes in wheel peripheral surface and side surface.…”

Design, Analysis and Optimization of Four Stroke S.I. Engine Piston Using Finite Element Analysis in Ansys Software

“…The radial thickness is given by 3 8.1534 Width of the topland, b 1 6.234 Width of the other land, b 2 3 Axial thickness of the ring, t 2 1.6 Radial thickness of the ring, t 1 1.7247…”

“…Engine testing, as well as for validating new simulation programs and systematically compiling design specifications. [1] Ch.Venkata Rajam et al, they designed, analyzed and optimized to piston which is stronger, lighter-weight with minimum cost and with less manufacturing time. In their paper they analyzed stress distribution in the various parts of the piston to know the stresses due to the gas pressure and thermal variations using with Ansys.…”

“…Nomenclature b 1 Width of the topland b 2 Width of the other land D Cylinder bore L Piston length t 1 Radial thickness of the ring t 2 Axial thickness of the ring t 3 Maximum thickness of barrel t H…”

“…[1]A piston should have adaptability in operating conditions, simultaneous running smoothness, low weight with sufficient shape stability, low pollutant emissions values and lowest possible friction losses inside the engine for operating smoothly.…”