REAL-LIFE SKILLS You are working in the metallurgic industry and you have to choose a new precision lathe. Analyse the characteristics of two different lathes that could meet the requirements you need and decide which one would be the most suitable for your work. The requirements are: 5. Read the instructions, take notes and then write a report. between centres operation distance between centres: 80” bed in strong and tough material wide bed, at least 14” powerful motor very fast spindle with more than 12 steps Specifications ITEM/MODEL YCL-2280 22" x 80" YCL-2680 26" x 80" Operation between centres between centres Bed material fine grain high tensile cast iron fine grain high tensile cast iron Lubrication oil immersed lubrication design oil immersed lubrication design Gears and shafts hardened hardened Motor 10 HP main motor 15 HP main motor Max. swing over bed 22" 26" Distance between centres 80" 80" Max. swing over cross slide 13-3/4" 14-3/4" Max. swing in gap 31" 36" Effective length in gap 6" 10" Width of bed 13-3/4" 16" Spindle nose D1-8 D1-8 Diameter of spindle through bore 3-1/8" 4-1/8" Spindle speeds 12 steps from 45 to 1,600 rpm 16 steps from 25 to 1,600 rpm After analysing the features of the two lathes I have decided that the one which best meets the requirements is... for the following reasons... 6. Build up a dialogue between student A, who asks about the characteristics of the two precision lathes and student B, who answers and gives details. What is the mode of use of the Birmingham YCL-2680 and YCL-2280 precision lathes? Between centres mode, so the workpiece is more stable, and more force may be applied to it without fear that the workpiece may break. What kind of material is used for the bed? ............. Student A: Student B: Student A: