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ERIC Number: ED029968
Record Type: RIE
Publication Date: 1969-Jun
Pages: 201
Abstractor: N/A
Reference Count: N/A
Positional and Form Tolerancing: Background, Present Status, and Educational Implications.
Wallis, Carl Ransom
The purposes of this study were to review and report background information on positional and form tolerancing, to ascertain the status of tolerancing practices in selected schools and manufacturing industries, and to ascertain the views of drafting instructors and industrial drafting personnel on tolerancing instructional content items. Questionnaire data were collected from 216 public secondary and post-secondary teachers, and 191 randomly selected industrial firms in 12 western states. Some findings were that 166 teachers taught tolerancing, 16 of the 41 content items were taught by 50 percent of the teachers, significant differences existed between industrial personnel ratings of items and those included in courses, and 119 firms included positioning and form tolerancing in their procedures. Conclusions were that much knowledge of tolerancing was not taught, there were differences of opinion between the industrial and educational groups on the relative importance of content items, tolerancing is accepted industrial practice, and instructors and draftsmen need more training in this area. A review of tolerancing literature, the questionnaire, and statistical data are included. This Ed.D. thesis was submitted to Arizona State University. (EM)
University Microfilms, Inc., 300 North Zeeb Road, Ann Arbor, Michigan 48106
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A