Coverage of specialized parts and prints, including applica- tions for fasteners, gears, cams, plastic parts, and precision sheet metal parts, is also included. In order to refl ect modern trends in the manufacturing industry, this revised edition also includes new content that discusses the role of prints in the digital age, updates the coverage of geometric dimensioning and tolerancing to current standards, and provides the latest information on additive manufacturing and rapid prototyping.
Another important change to this edition of Print Reading for Industry was the addi- tion of new spatial visualization tools. Print Reading for Industry is organized into sections based on a progression of concepts from simple to complex. A list of learning objectives and technical terms are located at the beginning of each unit, providing an overview of the content.
Review questions, review activities, industry print exercises, and bonus print reading exercises based on the prints found in the Large Prints Packet provide ample means of assessing student progress. An aligned section is usually drawn for a cylin- drical object with an odd number of features. Notice the upper arrow in this fi gure is perpendicular to the cutting-plane line, since the cut profi le is rotated into a vertical position and not foreshortened.
A broken-out section is created when a small portion of a part is exposed to show the interior con- struction. This is like starting to cut the object with a plane, but then breaking off a piece of the object, leaving the rest of the object shown in a regular way. A cutting-plane line in an adjacent view is unnecessary.
The sectioned portion of the view is separated by a short break line, as discussed in Unit 2. This type of section view can also be used to show exterior and interior details on the same view, similar in fashion to a half section. As in other cases, the hidden lines in the non-sectioned portion of the view may be drawn if needed to explain other interior details, or may be omitted for clarity.
Goodheart-Willcox Publisher Figure The half section is created when a symmetrical object is drawn as a blended view with one-half as a section view and the other half as a regular view. Figure An offset section is drawn with a cutting- plane line offset through the object to include the desired features. Feel free to contact him at rkbrown ilstu. During his career, Dr. Walter C. Brown was a leading authority in the fi elds of drafting and print reading.
He served as a consultant to industry on design and drafting standards and procedures.
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