کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
816712 906469 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Troca de processo de fabricação da trava da chave catraca
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Troca de processo de fabricação da trava da chave catraca
چکیده انگلیسی
The objective of this paper is to make feasible the exchange of the manufacturing process of pawls, one of the components of manual ratchet wrench tool, which currently is manufactured by the micro fusing process. The development has taken place, primarily, in analyzing the possible processes that could meet the technical requirements that the part requires, and after research, the process that has best met the requirements was powder metallurgy. To confirm the research, a prototype of the part has been made through the powder metallurgy process, in which the alloy for raw material has been adapted to the mechanical demands that the part will undergo. After molding, the prototype has gone through sintering and surface treatment to increase hardness and wear resistance. The prototypes have been assembled in six wrenches and subjected to torque test, in which has been applied 62 N.m, according to DIN 3122 which regulates the product. All 6 wrenches tested have been approved, but the sample 1 that had undergone carbonitriding treatment has shown the greatest resistance, resisting 98 N.m.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ciência & Tecnologia dos Materiais - Volume 26, Issue 1, January–June 2014, Pages 70-76
نویسندگان
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