Latest threads in ⚙ Mechanical Engineeringshow only best voted threads
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what are the English name of these materials?
Thanks for your time. Would you please help to tell me what these materials are? one: a material could stand high-temperature, maybe it will become warm when heating, but it could not distortion and...
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17 years ago
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What is a shroud on a impeller
Hi! I am a green hand on mechanical. Could anyone tell me what is a shroud on a impeller? Thank you very much.
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17 years ago
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Fire Barrier Materials, Flame Retardants, Halogen free Flame Retardants in electronics
conference invitation: Berlin 6.March.2007, London New York 9.March.2007 Fire Protection Materials Business Briefing Conference 2007 Fire Barrier Materials, Flame Retardants, Halogen free Flame...
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17 years ago
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view factor to sky: how to calculate?
Hi all, I am wondering how I can calculate the view factor for some easy applications. In this case, I am trying to calculate view factors between surfaces on earth and the sky. In the literature I...
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17 years ago
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Crack Stress Concentration Factor
I am looking for a source that would give me typical stress concentration factors at a crack's tip. Does anybody have that sort of information, or know of a good web site to get that information from?...
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17 years ago
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60 microns groove
Hi Dear colleagues, I need to manufacture in acrilic or other material 39 grooves of 10 mm of lenght, 90 microns width, 60 microns depth and separated 90 microns one of each other. I need only 5 unit...
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17 years ago
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sizing DC motor
Hi, I am trying to size a DC motor and need some assistance as to how to do this. The mechanism I am designing will be a 'drop test rig' for a product of ours (stress analysis & destructive test)....
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17 years ago
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its me
Hi , Im samoel
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17 years ago
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Hydraulic advice needed
I'm contemplating a project that requires power to be transmitted from a 4 or 5 HP gasoline engine, a distance of roughly 5 Ft. Mechanical transmission would be difficult. I was thinking of using a...
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17 years ago
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Compressive yield strength of 4140 versus A2 tool steel hardened to RC 55-60
Hi everyone, Does anyone have any data on the compressive yield strength of 4140 & A2 tool steel hardened to both 55 & 60 RC ? Perhaps there is a chart out there but I have not been able to find...
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17 years ago
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Any could link for Steel-Phases ?
Hello friends, anyone familiriar with any good data base with pictures of steel phases via optic microscopic view (Ferrite,Benite,Martensite,Perlite, Ledemvourite etc) terribly sorry about my english....
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17 years ago
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Re: The recoil of a hose when the tap is suddenly opened
Now reverse the process: the hose is under water, plugged, air filled. The plug is removed, and the air is evacuated from the other end. The water rushes in... does the hose 'recoil'? -- Rich
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17 years ago
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Question about crushers.. Need help..
Hello! I'm a student from Silesian University of Technology in Gliwice, Poland. Already I'm going to prepare some presentation, which will be about mining machines (used in coal minings). I'm looking...
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17 years ago
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Need help calculating (Estimating?) the heat transfer coefficient or r-value based on differences in temperature
Hello, I've bought an infrared thermometer to help find areas in my house that are letting too much heat through. I was wondering if it would be possible to estimate the heat transfer coefficient for...
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17 years ago
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Questions regarding experiences with loctite & using 680 or 630 series retaining compounds as thread-lockers
Hi everyone, Is there anyone in the forum that has used any of the 600 series loctite "retaining compounds" as thread-lockers ? I have tested some loctite # 262 & #2760 thead-locker on a #10-24 screw...
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17 years ago
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