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has been cited by the following article:

• TITLE: Analysis of the Manufactured Tolerances with the Three-Dimensional Method of Angular Chains of Dimensions Applied to a Cylinder Head of Car Engine

  AUTHORS: Aida Mezghani, Alain Bellacicco, Jamel Louati, Alain Rivière, Mohamed Haddar

  KEYWORDS: Three-Dimensional Tolerancing, Manufacturing Process, Toleranced Surface, Angular Defect

  JOURNAL NAME: Engineering, Vol.2 No.10, November 29, 2010

  ABSTRACT: This paper proposes an analysis method of the manufactured tolerances applied to a cylinder head of car engine. This method allows to determine the manufacturing tolerances in the case of angular chains of dimensions and to check its correspondence with the functional tolerances. The objective of this work is to analyze two parameterized functions: the angular defect Δα and the projected length lg of the toleranced surface. The angular defects are determined from the precision of the machine tools, we consider only the geometrical defects (position and orientation of surfaces), making the assumption that the form defects are negligible. The manufactured defect is determined from these two parameterized functions. Then it will be compared with the functional condition in order to check if the selected machining range allows, at end of the manufacturing process, to give a suitable part.