Рубрика: Handbook of Machining with Grinding Wheels

VIBRATION BEHAVIOR OF VARIOUS GRINDING OPERATIONS

The vibration behavior in cylindrical, internal, and surface grinding processes differ in significant ways [Inasaki 1977a]. In the case of internal and surface grinding, the chatter frequency is, in most cases, related to the natural frequency of the grinding wheel spindle system because the Amplitude ratio ycr/y   FIGURE 8.4 Geometrical interference.   dynamic stiffness […]

Coolants

10.1 INTRODUCTION Coolant is a term generally used to describe grinding fluids used for cooling and lubrication in grinding. The main purpose of a grinding fluid is to minimize mechanical, thermal, and chemical impact between the active partners of the abrasion process. The lubricating effect of a grinding fluid reduces friction between the abrasive grains […]

RECIRCULATING ROLLING ELEMENT SLIDEWAYS

Slideways employing recirculating rolling elements were the salvation of the machining center man­ufacturers as a means of reducing manufacturing costs while increasing speed for high-precision circular interpolation with CNC controls. They also virtually eliminated stick-slip (u = 0.001 to 0.003) and accompanying loss of motion, without the need for expensive hydrostatic way designs. They were […]

High-Efficiency Deep Grinding

High-performance deep grinding, with increased wheel peripheral speed and increased feedrate, is a special case requiring a cooling lubricant supply system adapted in terms of pressure and volume flow capability [Rowe and Jin 2001]. Application limits for high-performance grinding result from wheel safety requirements, that is, the maximum admissible peripheral speeds for grinding wheels. These […]