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We had devolopped a new system to monitor wind turbines installed in the ocean. Once the accelero are in place no manual handling is needed. So for a machine shop it is much easier. For your tool brekage in engine blocks,a classic pb, you should start with stub drills or short series drills, ask...

We have already developed system to do that for high speed machine tools. It works very well. It works for other machinery (pumps, compressor, gear boxes etc..) We have portable kit where you can install the acc. on the non-rotating parts of the spindle. Collect the signals analyse them and have...

NOOOOooo....don't do it!! you will scrap your life !! Just kidding you. Good luck :)

Forget Williams and Kapoor....these are academics :) Rough or smooth depends on the intended use of the surface. How to measure roughness : profilometer (contact, contactless),comparison (existing samples) Profilometer can provides at least 30 parameters to measure the roughness of a surface...

Do you need mechanically stronger material than SS410 Do you need more corrosion resistant material than SS410 17-4PH;SS455C; why not SS420... Zinov

Thanks to All, The parts size is approximately 3.5''x1.5''x0.5''. It is an assembly that shows some <wing> mechanism. RP followed by sanding and painting may produce something acceptable. but not durable. Paint cracks and the model becomes non-presentable. we paid around 5000$ for scaled samples...

Hi everyone, I am looking for companies that can produce realistic marketing products. Like reproduce any the 3D model from glass or high quality coloured plastic. All I found is companies selling pens, cups ,USB which is not what I'm looking for. Rapid prototyping did not produce good finish...

Hello Everyone, Thanks for reading my post. I continue to check the resistance of my <tubes> to torque load on solidworks. I have a high discrepancy between FEA and hand calculation Please see attached file for results :167 MPa (by hand) and 402.3 (Cosmos) My questions are : 1-Is my hand...

Thanks mmar, it works, I am@95.6MPa with the new plot. Thanks for the help, Zinov

AA2024

Hoezap, If I am not wrong ; ISO 8688-2:1989 (Tool life testing in milling -- Part 2: End milling). MQL, stands for minimum quantity lubricant or in machinist language --Mist It is a low quantity of oil ejected in the tool nose (go to utube and see lot of shots about it). It was a pleasure to...

Thanks Rumandcola, can you please give me more details on how to do it? Any reference, that can help, will be appreciated. Thanks, Zinov

Hi everyone and Thanks for reading the post. My hand calculation and FEA did not match at all for a new model I am working on it. Therefore, I created a very simple model to make FEA verification. Surprisingly, the results did not match at all. Please see the attached file for the details of the...

Hi Hoezap, concerning your last question : Curled and black, in my opinion this means high vibrations (I expect there will be strips on the back of the chips). In addition, the tool should be under high temperature. Use coolant or MQL. Take care with cast iron and check your pumping filters...

Hi hoezap, Could I say that reducing the inserts passing frequence of 30% I can also reduce the vibration of 30%? When you reduce the tooth passing frequency you lower your exciting frequencies. By lowering the exciting frequencies, you are allowing the machine-tool-structure <to do its job> or...

...I prefer face mills with odd teeth numbers. the maximum number of teeth cutting simultaneously can be estimated using the following equation m=R*(φb+φs)/(R*φt) In which m is raised to its nearest whole number, and where φt angle between two consecutive teeth of the cutter = 2π/N N total...

Hi hoezap, If you want to play with the cutting parameters to reduce vibrations here some clues : 1-You can reduce the number of inserts on your tool ; the machine runs@383rpm (6.38Hz), let's assume that the face mill has 12 inserts--the insert passing frequency is about 75.56 Hz which is the...

Hi Hoezap: <what is the maximum allowed displacement of the spindle head at your operating speed (generally it is curve or tabulated data, it can be found in the maintenance document)> I will reformulate : For each spindle there is curve : displacement vs speed. In the x axis of the curve you...

Hi Steel, Would you please name things with their names: Meaning use less 'it', 'them' ,'ones' For example :'ones' refer to tools or gears A clear text will be helpful for everyone. Thanks, Zinov

I will use 17-4PH or SS455 both heat-treatable. Unless your application needs non-magnetic grade than you should stay in the 300 series. another reason may be the room operating temperature if you have risk of brittle-ductile transition you should stay with 300 series. Finally in term of...