Рубрика: Life Cycle and Sustainability of Abrasive Tools

Abrasives

Look at this small grit, this tiny grain, so small one must rub hundreds of them between finger and thumb to feel their sharpness. Insignificant little grits and easily slighted in our sophisticated technological world, but without this small fragment of abrasive, transformed, when viewed under a microscope, into jagged heroic blocks — without these […]

Thermal, Electric and Magnetic Properties

2.8.1.5 Effect on Tool Production High sintering temperatures over 1300 °C can occur in manufacturing of vitrified bonded tools. In particular, diamond features low thermal wear resistance in air, which forced manufacturers to develop special low-temperature sintered bonds and to apply inert atmospheres [LINK15]. Electric and magnetic properties are important for electro-plated bonds because they […]

Tool Breakage

A robust, untroubled grinding process needs safety parameters for tool production [KLOM86, p. 11]. Tool breakage might be caused by wrong tool design, manu­facturing defects, inapproriate choice, faulty handling or storage, improper use, and clamping, etc. [DIN11]. Several organizations define safety measures for grinding wheel use, such as Berufsgenossenschaft or OSHA (Occupational Safety and Health […]

Adhesion

The direct contact of body and counter body can lead to atomic bonds (“micro weldings”), which are defined as adhesion [GAHR87, RABI95]. A relative movement of the contact partners does not necessarily involve that the bonds break within the original contact areas, so that material transfer can happen [HABI80]. Adhesive layers change the friction conditions. […]