Jig And Fixture Question And Answer Pdf

jig and fixture question and answer pdf

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Are you looking for the notes on Jigs and Fixture s? Yap, you are landed in the right destination. A jig is a work-holding devic e that holds, supports, and locates the workpiece and guides the one or more tools to perform a specific operation. In other words, this can also be defined as, used for holding the tools and also guiding the cutting tools.

Jig and fixtures

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The use of jigs and fixtures a Facilitates deployment of less skilled labour for production b Eliminates pre-machining operations like marking, measuring, laying out etc. The following is are the function s of a jig a Holding b Locating c Guiding d All of the above. A fixture does not a Holds the workpiece b Locate the workpiece c Guide the tool d All of the above. Jigs are not used in a Drilling b Reaming c Tapping d Milling. Fixtures are used in a Milling b Shaping c Turning d All of the above. The following holds the workpiece securely in a jig or fixture against the cutting forces a Locating device b Clamping device c Guiding device d Indexing device.

MCQ's on Jigs & Fixtures.docx

Bad Answer: Going negative - if the candidate starts trash talking other candidates, it's a sure sign of a bad attitude. Also, if they can't provide a solid answer, it may show that they lack thorough knowledge of the skills the job requires, and an understanding of where they fit in. Good answer: The candidate can name specific skills, abilities or understandings they have that apply directly to the job that other candidates are unlikely to have, or are in short supply. Is This Answer Correct? Candidates without specific examples often do not seem credible. However, the example shared should be fairly inconsequential, unintentional, and a learned lesson should be gleaned from it.

Jigs and Fixtures - Mechanical Engineering (MCQ) questions and answers

Science Research. Abstract: The paper gave a detailed definition of jigs and fixtures, and also identified the numerous advantages that are associated with the use of jigs and fixtures in manufacturing to include: production increase, cost reduction, interchangeability and high accuracy of parts, reduction of the need for inspection and quality control expenses, reduction of accident as safety is improved, automation of machine tool to an appreciable extent, easy machining of complex and heavy components, as well as low variability in dimension which leads to consistent quality of manufactured products. The work also explained that since the design is dependent on numerous factors which are analyzed to achieve an optimum output, that jigs and fixtures should be made of rigid light materials to facilitate easy handling. For adequate strength and rigidity, a mild steel with 16 millimeters diameter was chosen for the design of a sample jig and fixture. Mild steel which contain about 0.

TEACHING TOPICS: The Teaching of Jig and Tool Design

Design of Jigs & Fixtures/Material Used in Jig and Fixture

Jig and fixtures are made from a variety of the materials. There are times where the metals are hardened to resist wear and tear. From Wikibooks, open books for an open world. Most suitable for most jigs applications as it is the most economical and most widely used material in jigs and fixtures.

The basic jig is almost the same for either machining oper- ation. The only difference is in the size of the bushings used. Open jigs are for simple operations where work is done on only one side of the part.

IT HAS BEEN stated many times that jig and tool design is a difficult subject to teach because the design of such equipment rarely has a mathematical basis. Few will disagree with the latter part of the statement, but the implications of the first part must be examined carefully. Walker, W. Report bugs here. Please share your general feedback. You can join in the discussion by joining the community or logging in here.


(C) reduced manual handling operations. (D) All of the above. (Ans: D). 3-The following is(are) the function(s) of a jig. (A) Holding. (B) Locating.


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A jig is a work-holding device that holds, supports, and locates the workpiece and guides the one or more tools to perform a specific operation. Fixtures are the work holding devices, which holds, supports and locates the workpiece but not guides the cutting tool to perform a specific operation. Fixture is used for the convenience of fabrication of a job by welding which is set in this device so that it can be swiveled around Degree as per requirement. Usually drill jig is not clamped to the drilling machine table because, it is rigid enough for this operation. Bush is used in drill jig for locating accurately and guiding the drill for precise drilling operation. Drill jig bushings are normally hardened to ensure prolonged life without wear and tear so as to guide the tool accurately.

Как и многие другие сотрудники АНБ, он использовал разработанную агентством программу Мозговой штурм - безопасный способ разыгрывать сценарий типа Что, если?. на защищенном от проникновения компьютере. Мозговой штурм был своего рода разведывательным экспериментом, который его создатели называли Симулятором причин и следствий. Сначала он предназначался для использования в ходе избирательных кампаний как способ создания в режиме реального времени моделей данной политической среды. Загруженная громадным количеством информации программа создавала паутину относительных величин - гипотетическую модель взаимодействия политических переменных, включая известных политиков, их штабы, личные взаимоотношения, острые проблемы, мотивации, отягощенные такими факторами, как секс, этническая принадлежность, деньги и власть. Пользователь имел возможность создать любую гипотетическую ситуацию, и Мозговой штурм предсказывал, как эта ситуация повлияет на среду.

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