Syed H. Masood

Abstract: This paper describes a computer-aided design and manufacturing system for the design and production of complex profiles for high-performance drum cams within the specified tolerance. The system graphically generates the cam profile on the cylindrical drum after performing an analysis of the kinematic performance for the prescribed follower motion, using a B-spline representation of follower curves. Eight different types of follower motion for a translating follower are considered. The kinematic performance is based on the criteria of achieving the lowest levels of velocity and acceleration for each curve. The system is also able to simulate the motion of the designed cam graphically. The system also recommends the best cam profile on the basis of comparing the kinematic performance of all the B-spline representations of all the follower motions.

TL;DR: In this article, the effect of flow stress due to an increase in temperature was analyzed for AlSi12 aluminium alloy parts produced by selective laser melting (SLM) additive manufacturing technology.

TL;DR: A case study based on the statistical gage repeatability and reproducibility (gage R&R) technique is proposed to investigate the dimensional variations in the printed parts of the FDM process.

TL;DR: In this article, a computer-aided design and manufacturing system for the design and production of complex cam profiles within a specified tolerance using a half angle search algorithm developed for optimisation of CNC part programming of cam profiles is described.

TL;DR: In this article, the authors assess the mechanical performance of PLA-based materials under exposure of an organic liquid and investigate the liquid sorption mechanism and the induced expansion over a particular period.