Project title: Fibre Laser Cutting of Stents
Other PhD projects in Mechanical Engineering
_2009_Noorhafiza-Photo1.JPG)
| PhD student: | Noorhafiza Muhammad |
| Qualification: | MSc |
| Country: | Malaysia |
| Sponsor: | Ministry of Higher Education (MoHE) Malaysia and Universiti Malaysia Perlis |
| Expert group: | |
| Research group: | Manufacturing and Management |
| Collaboration: | |
| Awards: | |
| Personal page: | |
| Email: | |
| Supervisor: | Prof Lin Li |
Professional Biography: I obtained a B.Eng (Hons) in Manufacturing Engineering with Management and later a Msc. in Manufacturing Systems Engineering.
Research interests: Laser cutting, Smooth Particle Hydrodynamics
Project abstract
High precision laser micromachining is extensively used in medical device industry. In medical stent fabrication, the processed stents must exhibit mechanically robust structures and high surface quality. High cost of post processing requires high accuracy in machining. Small and thin tubes heat up quickly and it is crucial to manage heat distribution in the stent fabrication process. Meanwhile, molten material removal in profile cutting of small diameter tubes creates back wall damage to the opposite wall. This research aims to utilize single mode fibre laser to improve quality in stent cutting in order to reduce number of post processing and to process stents with reliable processing speed.
| Fig (a). Scanning Electron Microscope (SEM) images of the backwall at 40 W laser power - dry cutting | Fig (b). Scanning Electron Microscope (SEM) images of the backwall at 40 W laser power - wet cutting | _2009_Noorhafiza_Figure1a.JPG) |
_2009_Noorhafiza_Figure1b.JPG) |
Click to Enlarge