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魅麗。花火原創小說66折起
機械工程專業英語(簡體書)
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機械工程專業英語(簡體書)

人民幣定價:30 元
定  價:NT$ 180 元
優惠價:87157
領券後再享89折
無庫存,下單後進貨(採購期約45個工作天)
可得紅利積點:4 點
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作者簡介
名人/編輯推薦
目次
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商品簡介

本書編寫以機械工程專業英語基礎知識夠用為度,本著重在應用的原則,從機械工程專業基礎知識出發,全書共20個單元,內容包括金屬材料熱處理、焊接工藝、金屬切削機床與刀具、工程力學、機械原理與設計、CAD/CAM、模具結構及設計等。本書可作為相關院校機械工程專業英語教材,也可供機械工程專業人士學習參考。

作者簡介

長春大學光學學院機械學院教授,博導。

名人/編輯推薦

《機械工程專業英語》在教材內容、程度上,適合獨立學院學生英語基礎的實際,循序漸進,實踐練習,容易入門,且激發興趣,教材體現了一切為了學生發展的宗旨,以學生就業為中心,我機械類學生的就業實例證明,專業外語學習提高了學生在獨資、合資、外企等企業的就業能力。

目次

Unit1
Text 1:Heat Treatment of Steel
Reading 1:Metal Forming Processes
Unit2
Text 2: Welding
Reading 2: Cracking and Fracture in Welds
Unit3
Text 3: Cutting Angles
Reading 3: Classification of Machine Tools
Unit4
Text 4: Lathes
Reading 4: Accessories of Lathes
Unit5
Text 5: NC Machine Tools
Reading 5: Manual Programming Methods
Unit6
Text 6: Balancing
Reading 6: Fatigue Strength
Unit7
Text 7: Gears
Reading 7: Simple Gear Trains
Unit8
Text 8: Lubrication of Bearings
Reading 8: Lubrication Systems
Unit9
Text 9: Rationale for CAD/CAM
Reading 9: Computer Aided Process Planning
Unit10
Text 10: General Design Features and Classification of Dies
Reading 10: Drawing Dies
Unit11
Text 11: Alloy Steel
Reading 11:Metal- Casting Processes
Unit12
Text 12: Fusion Welding-Process Variables
Reading 12: Methods of Joining Materials
Unit13
Text 13: Tolerances, Limits and Fits
Reading 13: Manufacturing Process
Unit14
Text 14: Properties of Materials
Reading 14: Ductility and percent elongation
Unit15
Text 15:Shaft Design Procedure
Reading 15: Classification of Bearing
Unit16
Text 16: Computer-Aided Design and Manufacturing Squirt Shape Enters New Phase of Development
Reading 16: CAD/CAM/CAE and RP in the Metal Forming
Unit17
Text 17: Open-loop Circuit and Control
Reading 17: Types and applications of Open-Loop Circuits
Unit18
Text 18:Basic of Industrial Robots
Reading 18: Non-servo-controlled Robots
Unit19
Text 19: Moulds for Processing Plastic Materials-Classification of Moulds
Reading 19: Moulds for Press Moulding
Urut20
Text 20: The Automobile
Reading 20: Drivetrain
參考答案
參考文獻

書摘/試閱



General purpose machine tools(GPM)
These tools are those designed to perform a variety of machining operations on a wide ranging type of components.By its very nature of generalisation,a general purpose machine tool though capable of carrying out a variety of tasks,would not be suitable for large production,since the setting time for any given operation is large.Thus the idle time on the general purpose machine tool is more and the machine utilisation is poor.Machine utilisation may be termed as the percentage of actual machining(chip generating) time to the actual time available.This is much lower for general purpose machine tools.They are also termed as basic machine tools.
Skilled operators would be required to run general purpose machine tools.Hence their utility is in job shops(catering to small batch,large variety job production) where the requirement is versatility rather than production capability.Examples are lathe and milling machine.
Production machine tools
These are those machine tools where a number of functions are automated such that the operator skill required to produce the component is reduced.This helps in reducing the idle time of the machine tool thus improving the machine utilisation.A general purpose machine tool may also be converted into a production machine tool by using jigs and fixtures for holding the workpiece.Production machine tools have been developed from basic machine tools.Some examples are capstan and turret lathes,automatic and multiple spindle drilling machines.Their setting time for a given job is more and the tooling design for a given job is more time consuming and expensive.Hence they are useful only in case of a large volume of production.
Special purpose machine tools(SPM)
These are those machine tools where the setting operation for the job and tools is practically eliminated and complete automation is achieved.This greatly reduces the cycle time (the actual manufacturing time)of a component and helps in the reduction of costs.These are used for mass manufacturing.These machine tools are expensive compared to general purpose machines since they are specifically designed for the given application, and are restrictive in their application capabilities.Examples are cam shaft grinding machine,connecting rod twin boring machine and piston turning lathe.
Single purpose machine tool
These machine tools are those which are designed specifically for doing a single operation on a class of jobs or on a single job.They have the highest amount of automation and are used for high rates of production.These machine tools are used specifically for one product only and thus have the least flexibility.However they do not require any manual intervention and are the most cost effective.Examples are transfer lines composed of unit heads for completely machining any given product.

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優惠價:87 157
無庫存,下單後進貨
(採購期約45個工作天)