sorbitol
发表于 2025-3-28 16:00:14
Shapers and planers, a table, and metal is removed from its surface by a single point metal cutting tool, which has a reciprocating motion. Metal is removed only during the .. and no metal is removed during the . To reduce the total machining time, it is necessary to reduce the time taken by the return stroke. This is ensured by a . Fig 18.1 shows a typical shaper.
bypass
发表于 2025-3-28 20:52:45
Sheet metal work,etal, and is unsuited for mass production. In machine work, automatic machines are used to cut and form sheet metal. The production of household appliances, and parts for motor car bodies are typical examples of this kind of sheet metal work.
词汇
发表于 2025-3-29 02:44:03
The forging of metals,t that the . is different. Each metal grain is a minute crystal, and the strength of a metal component depends on the .. Fig 9.1 shows the difference in grain structure between a gear tooth that has been machined on the right of the diagram, and a gear tooth that has been forged, on the left.
咽下
发表于 2025-3-29 06:05:00
Hand Tools,d models, and in the maintenance of equipment. It is therefore important, that engineers should acquire sufficient experience and knowledge in the use of hand tools. Some of the most common hand tools are shown in Fig 1.2, and a brief description of their use is given below.
Malaise
发表于 2025-3-29 10:31:44
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有效
发表于 2025-3-29 12:49:59
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贪婪性
发表于 2025-3-29 17:49:56
The lathe,ccuracy of the work done on a lathe, depends on the skill and experience of the operator. A lot of time is taken for tool setting, tool changing,etc., with the result that it is unsuitable for production work. It is mainly used in tool rooms and workshops for the making of prototypes, and also for maintenance work.
恩惠
发表于 2025-3-29 21:02:14
https://doi.org/10.1057/9780230375062etal, and is unsuited for mass production. In machine work, automatic machines are used to cut and form sheet metal. The production of household appliances, and parts for motor car bodies are typical examples of this kind of sheet metal work.
Adenoma
发表于 2025-3-30 00:26:03
http://reply.papertrans.cn/32/3112/311102/311102_49.png
吵闹
发表于 2025-3-30 07:58:54
https://doi.org/10.1007/978-3-319-78015-3d models, and in the maintenance of equipment. It is therefore important, that engineers should acquire sufficient experience and knowledge in the use of hand tools. Some of the most common hand tools are shown in Fig 1.2, and a brief description of their use is given below.