Zastosowanie obrotowych noży tokarskich czołowych w wysokowydajnej obróbce

Janusz Cieloszyk

doi:10.17814/mechanik.2019.11.100

Abstract

The article presents an unconventional method of machining rolling surfaces. This method is called face rotary turning tools (FRTT) or spinning tools technology. Advantages and limitations of the method were discussed and its effectiveness in modern machining processes was shown, based on the proposed simple models.

Highlights

During the research on the possibility of self-rotating tools applications [2,3,4], marked with the acronym SPRET, for cylindrical surface machining on milling machines equipped with special device for workpiece fixing and rotation was checked the tool design, which use the bearing of machine tool spindle for their rotation
In case of classic milling machines numerically controlled in three axes, machining with face rotary turning tool requiered the use of attachment for mounting and rotation of workpiece on the machine table, and in case of turning machines - special attachment for mounting, angular positioning and face rotary turning tool drive
Based on the results of wear and tool resistance test it can be shown that in case of turning process of series of shafts, to the execution of which was necessary to use 20 cemented carbides inserts, round – diameter D = 12 mm, worth 100 €, the estimated cost alternatively used square, 4-edged inserts would have amounted to 2000 €, and diamond, 2-edges inserts– 4000 €

Summary

Introduction

During the research on the possibility of self-rotating tools applications [2,3,4], marked with the acronym SPRET (self-propelled rotary edge tool), for cylindrical surface machining on milling machines equipped with special device for workpiece fixing and rotation (fig. 1) was checked the tool design, which use the bearing of machine tool spindle for their rotation.Designed and constructed tool with uniform edge with shank (fig. 1a – high speed steel tool) or tool with replaceable edge as cemente carbide insert (fig. 1b), placed in a simple, shank-shaped body, was mounted in milling machine spindle using clamp. Characteristics of machining process with face rotary turning tools (FRTT)

Results

Conclusion