surface-hardening steel
51Japanese sword — Traditional Samurai swords and fittings A Japanese sword, or nihontō (日本刀 or にほんとう, lit. Japanese sword …
52Portland cement — is the most common type of cement in general usage in many parts of the world, as it is a basic ingredient of concrete, mortar, stucco and most non specialty grout. It is a fine powder produced by Portland cement clinker (more than 90%), a… …
53Machinability — The term machinability refers to the ease with which a metal can be machined to an acceptable surface finish.Degarmo, p. 542.] Materials with good machinability require little power to cut, can be cut quickly, easily obtain a good finish, and do… …
54Chip formation — The basic chip formation process. Chip formation is part of the process of cutting materials by mechanical means, using tools such as saws, lathes and milling cutters. An understanding of the theory and engineering of this formation is an… …
55Structural engineering — is a field of engineering dealing with the analysis and design of structures that support or resist loads. Structural engineering is usually considered a speciality within civil engineering, but it can also be studied in its own right. [cite… …
56cutlery — /kut leuh ree/, n. 1. cutting instruments collectively, esp. knives for cutting food. 2. utensils, as knives, forks, and spoons, used at the table for serving and eating food. 3. the trade or business of a cutler. [1300 50; ME cutellerie < MF… …
57Nitridization — Nitridization, also known as nitriding, is a process which introduces nitrogen in the surface of a material. It is used in metallurgy, for example, for case hardening treatment of the steel surface.Nitriding is widely used in automotive,… …
58Metallurgy — Georg Agricola, author of De re metallica, an important early book on metal extraction Metallurgy is a domain of materials science that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their… …
59Industrial process — Industrial processes are procedures involving chemical or mechanical steps to aid in the manufacture of an item or items, usually carried out on a very large scale.Industrial processes are the key components of heavy industry.Most processes make… …
60cement — cementable, adj. cementer, n. cementless, adj. /si ment /, n. 1. any of various calcined mixtures of clay and limestone, usually mixed with water and sand, gravel, etc., to form concrete, that are used as a building material. 2. any of various… …
