Lapping is a mainly room-bound process with geometrically undefined cutting edges. It is defined as a cutting process with loose grits distributed in a fluid or paste, so called lapping slurry, guided by a counterpart, which is usually shape-transferring (also called lapping tool). The cutting paths of the individual grits are ideally undirected [KLOC09, p. […]
Рубрика: Life Cycle and Sustainability of Abrasive Tools
Fiber Reinforced Resin
Asen [ASEN08] has patented a wheel body made from a fiber composite, specifically with carbon fibers, glass fibers, or synthetic fibers. Different fiber structures are undergoing investigation, in particular uni-directional, orthotroph (fibers in different orthogonal directions) or transversal-isotrop [KRAF08]. The fiber structure affects body strength and isotropy. Vitrified and resin bonded abrasive layers are glued […]
Cutting Edge Density
Cutting edge density is important to understand tool performance during the grinding process. Many researchers analyzed the statistical nature of the cutting edges [KASS69, BUTT68, SALJ88, HOU03, LORT75, etc.]. 6.2.1 Definitions 6.2.1.1 Static Cutting Edge Density Researchers differentiate between grit number and cutting edge number because each grit can have several cutting edges. However, both […]
Dressing with Diamond Tools
Today, dressing tools with diamond material are commonly used for grinding wheels [KLOC05a], using either stationary or rotating dressing tools. Stationary tools move parallel along to the grinding wheel axis on a path defined via NC programming or guide ruler (Fig. 6.17). The grinding wheel topography is generated like in a turning process [KLOC05a]. The […]
Grinding Process Model
7.3.2.1 Traditional Fundamental Requirements in Grinding Manufacturing processes have to accomplish certain tasks depending on workpiece material, stock removal (finishing or roughing operation), availability of machines, batch size, form and dimension tolerances, achieved surface roughness and integrity, and more [LINK12c]. The following discussions focus on ductile material in finishing operations and the choice of the […]
Case Study on Speed-Stroke Grinding with High Grinding Wheel Speeds
Speed-stroke grinding is surface pendulum grinding with increased table speeds up to vw = 200 m/min. Advantages arise from the changing active chip formation mechanisms [INAS88, ZEPP05]. Chips gets shorter and thicker, which accounts for a more effective chip formation. The specific material removal rate, Qw, results from depth of cut, ae, and workpiece speed, […]