grinding contact

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• grinding crack — cracks can arise from incorrect grinding and appear in the form of a network. They are caused by the generation of high heat and rapid cooling in the area of contact and they mostly occur when grinding fully hardened material such as tool steel …   Mechanics glossary

• Belt grinding — is a machining method to process metals and other materials, with the aid of coated abrasives. The basic difference between belt grinders and belt sanders is the material being machined. Sanding is the machining of wood, grinding is the common… …   Wikipedia

• Surface grinding — is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or non metallic substance from a workpiece, making a… …   Wikipedia

• Mass finishing — is a group of manufacturing processes that allow large quantities of parts to be simultaneously finished. The goal of this type of finishing is to burnish, deburr, clean, radius, de flash, descale, remove rust, polish, brighten, surface harden,… …   Wikipedia

• Cylindrical grinder — The cylindrical grinder is a type of grinding machine used to shape the outside of an object. The cylindrical grinder can work on a variety of shapes, however the object must have a central axis of rotation. This includes but is not limited to… …   Wikipedia

• Spirit rover — (MER A) Artist s concept of Rover on Mars Operator NASA Mission type Rover Launch date …   Wikipedia

• perissodactyl — perissodactylous, adj. /peuh ris oh dak til/, adj. 1. having an uneven number of toes or digits on each foot. n. 2. any mammal of the order Perissodactyla, comprising the odd toed hoofed quadrupeds and including the tapirs, rhinoceroses, and… …   Universalium

• hand tool — any tool or implement designed for manual operation. * * * Introduction  any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …   Universalium

• Abrasive — An abrasive is a material, often a mineral, that is used to shape or finish a workpiece through rubbing which leads to part of the workpiece being worn away. While finishing a material often means polishing it to gain a smooth, reflective surface …   Wikipedia

• Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… …   Universalium

• industrial glass — Introduction       solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …   Universalium