Integral Mechanical Attachment: A Resurgence of the Oldest Method of Joining
Fully illustrating the major classes of integral mechanical attachments, this invaluable book explains how they work, and how they can be put to use to save time and money.
TABLE OF CONTENTS Integral Mechanical Attachment: A Resurgence of the Oldest Method of Joining
3.5: INTEGRAL RIGID ATTACHMENT FEATURES
3.5 INTEGRAL RIGID ATTACHMENT FEATURES
Integral rigid attachment features differ slightly, but importantly, from integral rigid locking features in that they enable attachment of the part containing the integral feature but do not, solely from that feature, cause locking to another, mating part. There are four sub-classes of integral rigid attachment features:
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Flanges and shoulders
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Ears and tabs
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Bosses and lands
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Posts
Collars, which can perform the function of flanges or, particularly, shoulders, could be included within this sub-class when, as separate parts initially, they are made integral by some permanent or semi-permanent joining method, but are, instead, included under the sub-class of rigid collars and connections (see Section 3.7). Rigid locators or locating features used with integral elastic snap-fit attachments (see Chapter 4) are treated as a separate sub-class in Section 3.8.
3.5.1 Flanges and Shoulders
Flanges and shoulders are virtually identical integral geometric features of a part that allow that part to be joined to and locked with another part using either bolts and nuts or clamping rings. Normally found on cylindrical solid or hollow shafts or thick-walled pipes, both flanges and shoulders create a circumferential protruding ridge of diameter larger than the shaft or pipe through which bolts (for example) can be installed or over which a spring-type clamping ring can be applied. Flanges are always located at the end of a shaft or pipe, while shoulders are located elsewhere along the length of a shaft or pipe. Flanges tend to be...
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