1038 Каталог WIDIA 2011 Инструментальная оснастка для металлорежущих станков Стр.K2

Каталог WIDIA 2011 Инструментальная оснастка Стр. K2 1038 ENG Lab2u

Technical Information Technical Information Spindle Connection WIDIA The Correct Spindle Connection and Application Guide The Spindle Connection Several different types of spindle connection have been developed or optimized over the last few decades. The 7/24 ISO taper became one of the most popular systems in the market. It has been successfully used in many applications, but its accuracy and high-speed limitations prevent it from growing further due to only having one ring of contact around the gage diameter/uppermost cone. The recent combination of face contact with 7/24 solid taper provides higher accuracy in the Z-axis direction, but this also presents some disadvantages, namely the loss in stiffness at higher speeds or high side loads. Most of these tools on the market are solid and the spindles have relatively low clamping force. KM Good - One ring contact (continued) In 1985, WIDIA (Krupp WIDIA) and Kennametal initiated a joint program to further develop the concept of taper and face contact interface and a universal quick-change system now known as KM and recently standardized as ISO 26622. The KM system has a very strong design, utilizing three rings of contact, the flange face, and lower as well as upper ring of contact of the cone. The polygonal taper-face connection, known as PSC, is now also standardized as ISO 26623, and in the early 1990s, the HSK system started being employed on machines in Europe and later became DIN 69893 and later ISO 12164 with two rings of contact. K2 WIDIA