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Good morning all of you. I have appreciated so much your comments. Believe me, your oppinions were very available to me. Best regards. roberto1brasil

Hello everybody. Thanks a lot for all comments. I would add that our three points bore micrometer is Mitutoyo and according to CMM manual (DEA) the repeatibility is 0,003 mm (3 microns). Regards Roberto1Brazil

Hello. Sorry the document was not uploaded. I think that now it is OK. Thanks https://files.engineering.com/getfile.aspx?folder=5b7ddf18-5b63-4823-8c95-6f64c2c63af3&file=Sketch_-_HOLE_WITH_BUSH..pdf

Hello Please, I would like to have an idea of what can be happening when comparing inspection results between a CMM machine and conventional micrometer. Here at my company, we have a part (casing) which has a hole repaired making use of a bush installed in it. Just to clarify my question, I have...

Hi everybody. Thanks all a lot for your attention. The drawing came from France and so I believe that it was ISO. Sorry for don't mention it. I am really glad for all comments. I was without internet since yesterday, and only today I was able to read. Best regards Roberto

Hello everybody. Please, I need your support regarding the sketch attached. It is a simplified drawing of a shroud of turbine. Only the main features are represented in the sketch. The aim of drawing is to supply information to machine a lobule located at 30° from hole “O” at opposite position (...

Hello. Thanks all of you for the tips and advices. I will check all the information involved. Regards Roberto

Hello everybody. Please, I need some advices about the use of markers on aeronautic parts. In the aeronautic industries the use of markers is restrict to some ones because of contamination that some products can cause on parts. At my company we make use of a marker with red wax. It is easier to...

Hello dvd and tbuelna. Just for information, the plate is made of stainles steel series 300. I believe that your suggestion is something easy to do. Ok, we will test this configuration of plate on the turbine casing. Thanks and best regards Roberto

Hi Mike and Thomas and Btrueblood. I have appreciated so much your suggestions and comments about. In fact I work in a site in Brazil of an Aeronautical Industry and I cannot apply the suggestions described without consulting our main site. Of course I will contact them in order to show the...

Hello. Thanks for the information. I never had heard about stainless steel velcro. I will research about. I appreciated so much your first option. Regards. Roberto

Hi everybody. Please, I would like to have your support on the following issue if possible: We have a turbine case (Inconel) that reaches a temperature of 350° C ( 662°F ) when in working. There is a identification plate (0,7 mm thick) welded by Resistance Spot in the wall (1,5 mm thick) of...

Thanks all of you for the explanations and examples. Changing the symbol from total runout for the one of concentricity, I can imagine that we can have a closed diameter size tolerance with a center only offset 0,02 mm from the data reference. Now it makes sense for me the total runout...

Hi, I have checked some previous questions about this matter in this forum but anyway I would like to be sure. Please, could someone confirm my following doubt and interpretation? Is it possible to have a dimensional tolerance (diameter ) of 0,005 mm and a total runout of 0,02 mm for the same...

Thanks for the explanation. I would like to complement my doubts saying that my site is located in Brazil and has received drawings from our matrix (abroad) of parts like the last one attached. Being more accurate in my descriptions, I can say that the holes in the flange are to be assembled in...

Hello CheckerHater! Thanks for the information. Sorry for asking one more doubt: It means that after correcting the simbols from the drawing part 1 (see new sketch attached), we only will be able to inspect the runout by a CMM machine? In fact the original drawing had no "M" simbols in the...

Hello everybody. Please, I need your help. I have attached the main features of a part and its hard gauge to inspect the runout of internal diameter and having as datum a pattern of holes. I know that is possible to inspect it making use of a CMM machine, but we are interested on developing a...

I thank you all for the comments and advices. Terry, you are right, the inserts are Helicoil. I can say you that your support was very important to me. Now I am feeling a little more confident about this matter. Thanks Mike and Terry. Roberto

Please, could someone help me with the following issue? The shop floor of my company have to install inserts to obtain threads M5 x 0,8 in a 32 (quantity) threads holes (through holes) in a flange of 7,7 mm thick and approximately 260 mm external diameter. The metal base flange is already...

Thanks pmarc and CH for the comments. CH, I have read the newsletter that you had attached. The information enclosed will be useful for me. Best regards Roberto