No abstract

In the previous paper [12], a design of location and construction of a rotating turning tool has been documented. Sporadically, this tool has appeared in literature [1], [2], [3], [4] in different applications. So far its operational characteristics, mainly its considerable influence on machined surface quality, exceptional durability and possibility to be used to turn hard machinable materials have not been appreciated. Some of its priorities are verified in the paper.

No abstract

Abstract-Quality and accuracy in engineering is described by means of standards ISO. One of these standards is standard ISO 3685. The main part of this standard is T-v c dependence for various cutting materials. Standard ISO 3685 contains main properties and characteristics of three most important cutting materials those are used in engineering practice. These cutting materials are used for cutting tools made of high speed steel, cutting ceramic and sintered carbide. The standard ISO 3685 prescribes instructions to creation of T-v c dependence for defined cutting materials. Paper describes process how to define T-v c dependence for cutting tools made of high speed steel, cutting ceramic and sintered carbide, because were found deficiencies in valid standard ISO 3685.

In the development of new cutting materials as well as the application of recent ones it is necessary to know the dependence of their durability on cutting speed. Cutting speed, which determines maximum tool durability, can be derived from it. Recent methodology of finding out this dependence is based mainly on long-term machining examinations and tests, which are demanding on time and material and they can be realised only in laboratory conditions. The paper presents a suggestion of short-term, but equally precise examination, which is based on the observation of tool wear depending on cutting speed.