Research

MRL is a multidiscipinary lab, conducting research on additive, subtractive and hybrid of additive and subtractive manufacturing.

SEM images of chip produced by machining at feed and speed of 0.13 mm/tooth and 50 m/min on (a) vertically printed, (b) horizontally printed, and (c) wrought block.

Lab Members

The MRL lab is made up of a diverse group of undergraduate and graduate students, who study a broad range of processing and applications, and relations to industry.

Dr. Kishawy

Dean of Faculty of Engineering and Applied Science, Professor

BSc, MSc, PhD, P.Eng

Dr. Sayyed Ali Hosseini

Associate Professor

BSc, MSc, PhD, P.Eng

Latest Publications

Sadeghieh, M., Mofidi, S.M., Hosseini, A., Moetakef-Imani, B.* (2024): Jerk limited continuous tool path generation for flexible systems in non-cartesian coordinate systems, Manufacturing Letters 41, 395-405

Inspired by computer numerical control (CNC) technology and drastic changes in the world of electronics and microcontrollers, the idea of using non-cartesian coordinate system for CNC machines became a topic of interest. Non-cartesian coordinate systems provide freedom of movement in systems with large working spaces where high dimensional accuracy is not a prime concern. Applications of such systems can be found in murals, where a painting is applied to a large wall of any arbitrary build material. In the present paper, a new design was introduced to automate the process of drawing murals on large surfaces. The proposed mechanism utilized chain and sprocket to overcome the size limitations of traditionally available x-y tables. In addition to that, the developed mechanism does not utilize the common robust structures used in the conventional CNC systems and the tool motion is created using flexible …

Molazadeh, S., Hosseini, A.* (2024): Modelling of material behavior for additively manufactured 17-4 PH stainless steel produced by fused filament fabrication 52, 341-365

This paper proposes a model to predict the tensile characteristics of metal fused filament fabricated (MFFF) components. The proposed model consists of mathematical, experimental, and finite element (FE) models. The mathematical model was constructed based on the composite laminate theory and was combined with experiments for basic layup of 0° and 90° raster angle to describe the behavior of MFFF parts. The FE model was built to simulate the behavior of MFFF parts in a virtual environment and its validity was verified using independent experiments for a more common layup....