Mohamed Hashish | |
|---|---|
 | |
| Born | May 22, 1947 Alexandria, Egypt |
| Alma mater | University of Alexandria, Concordia University |
| Occupation | Research scientist |
| Known for | The father of the abrasive water jet cutter |
| Spouse | Nadia Afifi |
| Scientific career | |
| Fields | Mechanical Engineering |
Mohamed Hashish (born May 22, 1947) is an Egyptian-born research scientist best known as the father of the abrasive water jet cutter. [1]
Mohamed Hashish was born in Alexandria, Egypt to Ahmed Hashish and Zeinab Amin. Mohamed Hashish completed his elementary and high school education in Kafr El Dawwar. He subsequently attended the Faculty of Engineering, Alexandria University where he obtained a B.Sc. in mechanical engineering with honors. After serving as a teaching assistant for three years in the same department, 25-year-old Mohamed Hashish accepted a scholarship offer from Concordia University in Montreal, Quebec, Canada. There, Mohamed earned his PhD in mechanical engineering. His thesis was on the theory of waterjet cutting. [2]
Hashish joined Flow Research Inc., now Flow International Corporation in Kent, Washington, U.S., as a research scientist, in early 1979. Although Flow was involved in waterjet cutting, mainly for mining and limited factory applications, it wasn't until Hashish invented a new technique to add abrasives to the waterjet that the strongest cutting tool in the world was realized. [3] This new technology revolutionized the waterjet technology and spread its use in over 50 industries worldwide. Hashish supplemented his initial invention with over 40 patents to date [4] [5] [6] [7] to further improve and enhance the performance of waterjet cutting systems. Due to his outstanding work in the field and consistent advancements to the abrasive waterjet technology, the University of Washington department of Mechanical Engineering honored him with the appointment as an affiliate professor of Mechanical Engineering. Hashish is also honored with the first technology award from the Water Jet Technology Association (WJTA), the pioneer award, and the service award from the same association.
Mohamed was married in 1979 to Nadia Afifi, Doctor of Dental Surgery. Mohamed and Nadia have two children, Ameer and Rami Hashish. In his spare time, Hashish enjoys landscape architecture, skiing, fishing and travelling.[ citation needed ]
Ahmed Hassan Zewail was an Egyptian and American chemist, known as the "father of femtochemistry". He was awarded the 1999 Nobel Prize in Chemistry for his work on femtochemistry and became the first Egyptian and Arab to win a Nobel Prize in a scientific field, and the second African to win a Nobel Prize in Chemistry. He was the Linus Pauling Chair Professor of Chemistry, a professor of physics, and the director of the Physical Biology Center for Ultrafast Science and Technology at the California Institute of Technology.
A water jet cutter, also known as a water jet or waterjet, is an industrial tool capable of cutting a wide variety of materials using an extremely high-pressure jet of water, or a mixture of water and an abrasive substance. The term abrasive jet refers specifically to the use of a mixture of water and an abrasive to cut hard materials such as metal, stone or glass, while the terms pure waterjet and water-only cutting refer to waterjet cutting without the use of added abrasives, often used for softer materials such as wood or rubber.
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CryoJet / IceJet is a derivative of the machining process called abrasive waterjet (AWJ) machining. CryoJet/IceJet technology uses ice particles made of water coming from a running water or freshwater system to cut material. While the ice particles are cutting material, they melt and go into the water tank of the machine. The pressurized water acting as a cutting jet can be re-used, with adequate filtering, creating a closed water circuit. However, the majority of users do not re-use the water. If more widely used, CryoJet may produce a drastic reduction in the amount of abrasive waste spill currently produced during the water jet cutting process, as no mineral abrasive is used by this technology.
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