6/7/2023 0 Comments Mario super run crack tweak![]() Tangential force P x as well as P z and P y increase considerably with increase in flank wear. In lathe, cutting speed means the number of metres measured on the circumference of job that passes the cutting edge of the tool in one minute. While determining the cutting speed for any material, several factors are to be taken into account e.g., the type of job and tool, condition of machine, type of cut required (roughing or finishing), machinability of material, tool materials, presence of hard scale and so on. Mathematically, cutting speed = (πDN / 1000) metres/minute. Where D = Diameter of job in mm, N = Spindle or job speed in R.P.M. The selection of proper cutting conditions (i.e., speed, feed, depth of cut, coolant, etc.) plays a vital role in the economy of production. It is the amount of tool advancement per revolution of job parallel to the surface being machined. It is given in mm per revolution of the job. ![]() The rate at which the tool is fed depends upon various factors such as finish required, depth of cut and the rigidity of the machine, e.g., a high rate of feed will get the job done in less time but will give a rough finish and will take more time to drive a slower rate will give a better finish but will take a longer time. It is the advancement of tool in the job in a direction perpendicular to the surface being machined. ![]() Depth of cut depends upon cutting speed, rigidity of machine- tool and tool material etc.
0 Comments
Leave a Reply. |