Question

A grinding operation takes place with a 295 mm wheel with a spindle speed of 4730 RPM. The workpiece feed rate is 248 mm/min and the depth of cut is 0.0025 mm. Given that C-3.5 grains/mm2 and r-12, calculate: -The length of the metal chips 3 Decimals, Unit mm Answer 0.859 The Grinding surface speed (V) Unit: mm/sec Answer73089.76 calculate -The thickness of the metal chips Unit: mm (6 decimals required) Answer: 8.333333 The volume of the chips Answer format: Scientific format: 3 digits significant figures. xxxexx Or general format: 10 decimals. Unit mm3 Answer. 0.00000242 Calculate number of cutting points (P) if the wheel width is 100 mm Answer 324500 - Calculate the material removal rate if the wheel width is 100 mm Unit mm3/min Answer: 18265.08

Answer 1

whool dlowob, (D) = .29 59mm Spindle speed (A)--L㈲Rmo Depth op cul-(4)= 0.00257mm) C35 /m2. eDd25xo. 0025)

60 Vs = (TTX 295x4730 60 Ciüi) ho tliokyos of -tl matol chips(t)

wka 0,002s 3.5x 30x100 295 ニ2X2Y8XG0 |o.co2厂 60 ) te valun of the dig (ve) thicknas op-tha chip (te) We 12x2.9 1 11 12- 34.9333-44m帆

Ve こ.lext.xw Vc = อ.858PX 2.911112 X34.93334 Pニる00.545 VI &118 X 0.00 25 X 100 3 二