Why do razors dull




















David Szondy is a freelance journalist, playwright, and general scribbler based in Seattle, Washington. A retired field archaeologist and university lecturer, he has a background in the history of science, technology, and medicine with a particular emphasis on aerospace, military, and cybernetic subjects. In addition, he is the author of a number of websites, four award-winning plays, a novel that has thankfully vanished from history, reviews, scholarly works ranging from industrial archaeology to law, and has worked as a feature writer for several international magazines.

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No abusive material or spam will be published. Interesting, bt my blades last me for two months before I even think about chaning them. I do have a soft beard. I figured out an extremely simple method of making the blades last for months on end. Don't shave!!. No jokes apart I shave immediately after taking a shower. Don't even need any fancy shaving foam.

Regular bath soap lightly applied does the trick. BTW soap is only for the razor to glide easily on the face and not cut your self.

Does absolutely nothing to make the beard soft. How exactly is one material 50 times softer than another material? Pablo August 7, AM. As a consumable product, no one making them has the slightest interest in making them last longer. Mine usually go two or three months before getting bad enough to swap them out. I use 5 blade cartridges from a major manufacturer, and shave in the shower 7 days a week.

They last a decent time, but cost a small fortune. Whatever soap I happen to be using I've always suspected those have ingredients that speed up the blade wear process. Aross August 7, AM. Search MIT. Search websites, locations, and people. Enter keywords to search for news articles: Submit.

Browse By. Why shaving dulls even the sharpest of razors. Publication Date :. Press Inquiries. Press Contact : Abby Abazorius. Email: abbya mit. Phone: Caption :. Credits :. An in-situ hair cutting experiment in a scanning electron microscope, showing the chipping process. Image: Gianluca Roscioli Surprisingly, the experiments revealed very little wear, or rounding out of the sharp edge over time. In-situ single-hair cutting experiment carried out to measure the loads generated on the blade edge during shaving.

Smithsonian Magazine Researchers at MIT have determined why shaving causes everyday razors made of Martensitic stainless steel to wear down so quickly. Wired Wired reporter Eric Niiler writes that a new study by MIT researchers sheds light on why razor blades get dull so quickly. New Scientist By observing and recording the cutting process, MIT researchers have found that human hairs chip razor blades during the shaving process, reports Leah Crane for New Scientist.

Related Articles. Workshop connects microscale mechanics to real-world alloy design. When a razor blade cuts the hair, those cracks tended to widen, with the severity of the cracking depending on the angle between the blade and the hair and whether the hair meets the blade at a point where one of the cracks lies. It is difficult to control for the angle and position of the hair, so the best way to make longer-lasting blades may be to create them in a way that minimises the beginnings of these small cracks, maybe by using more uniform materials.

Tasan and his colleagues are working on such a material now, he says. Journal reference: Science , DOI:



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