影响
发表于 2025-3-27 00:24:52
http://image.papertrans.cn/m/image/628300.jpg
ventilate
发表于 2025-3-27 04:03:58
Strength of materials (Festigkeitslehre),The strength of materials is a subject which deals with the effect of . on . (and structures) which are basically in a . It can be considered to be a part of mechanics and is partly based on the . In addition, it uses experimentally obtained data about the . in the . of elastic bodies when external forces act on them
创造性
发表于 2025-3-27 07:04:36
http://reply.papertrans.cn/63/6283/628300/628300_33.png
opprobrious
发表于 2025-3-27 11:36:55
Thermodynamics (Thermodynamik),In any type of scientific study, attention is focused on a . or a . which we can call a . Anything which is outside the system and which affects its behaviour can be called the .. The beaviour of a system can be studied from two separeter points of view, . and .. In studying the behaviour of a system, we must choose . (or .) which define the ..
粉笔
发表于 2025-3-27 17:36:41
Machine elements (Maschinenelemente),In the past, it was the practice to make each component to . and assemble the components to form the final product. Each . of the component was . accurately using measuring instruments, and accepted only when the dimensions were extremely . to the
他很灵活
发表于 2025-3-27 21:47:11
CNC machines(CNC Maschinen),The machining of metal components had been done in the past by using . like lathes, milling machines, etc. and the accuracy of the work done was dependent on the . of the operator. A lot of time was taken for ., ., etc. The result was that these machines were unsuitable for large scale production
荧光
发表于 2025-3-28 00:29:55
http://reply.papertrans.cn/63/6283/628300/628300_37.png
表示问
发表于 2025-3-28 03:38:56
Mechanics (Mechanik),ugh to specify the magnitude and direction of the force. It is also necessary to specify ., and this is done by specifying its .. An external force may be applied at . without changing its effect on the body
阻止
发表于 2025-3-28 09:46:16
,Metal removal processes (Zerspanvorgänge),and . (or relief) . as shown for a lathe tool in Fig 7.10. The material which lies ahead of the tool is sheared continuously. Chips are formed which become hard and brittle, and curl away from the tool. Four basic types of chips can be identified
向外才掩饰
发表于 2025-3-28 12:03:27
Other manufacturing processes (Weitere Fertigungsverfahren),that are required for manufacturing the desired product. Initially the metal itself has to be produced from . or . This is done in furnaces by . and . The . metals or alloys, are normally cast into ingots, billets or slabs. These are metals in their initial form