Recent content by ak762

I’ve found useful for me The Geometrical Tolerancing Desk Reference: Creating and Interpreting ISO Standard Technical Drawings by Paul Green

I think in the same way. CH, Could you reference at technical literature from where you extracted a sample with former practice of ISO 286. I did not find such clarification and always was confused with co-existed 286-1 and 8015 when I came in ISO world with GOST background

I would like to write glad to help you Season but CH re-posted everything ahead [smile] Just confirm the translation is correct. One comment regarding to general surface roughness, I guess you can see this symbol in upper right corner on the drawing. The meaning is the same as general surface...

The introduction in GOST 2.308-79 for the symmetry is the same as in ISO 1101 - "The tolerance zone is limited by two parallel planes a distance “T” apart, symmetrically disposed about the median plane, with respect to the datum." “T/2” is radial value. It is true for Symmetry, Tolerances of...

BTW SeasonLee's attachment displays the representation by GOST. CheckerHater;s interpretation with T/2 is absolutely correct. Balloon n4 means particular marking method with reference in general note 4...

Will it make sense if the datums change a place in the frame to put [B] as primary and [A] as secondary? I've seen the similar sample Fig9-7 in ASME Y14.5-2009

My interpretation of the definition of the tolerance zone what specified in the frame yes,the perpendicularity of the hole's axis applies though the hole tapered.

Quite difficult to make correct assumption seeing only one section view but the positional tolerance include perpendicularity as well.

And how to interpret 4.3.1 Welding of padeyes All main welds between pad eyes and the primary frame structure shall always be full penetration welds.

I am sure your product must get the certificate according to technical regulation on Russian territory. You can find more http://www.tehnoprogress.com/sert_teh_reglament_mash.html http://en.wikipedia.org/wiki/Type_approval

totally agree with cjccmc My suggestion was as input idea of precision threshold. With lapping pin or hole you can slightly lose precision but achieve result.

I would start from open catalog of Mold components to find something similar. At least fit H7/g6 with Ra0.4 is reasonable choice with your particular application.

I would consider also that there is relationship between precision of fit grade and surface roughness

Because relationship for chanels are separate to each hole D30 with axes intersecting. I assumed this representation give unambiguous interpretation. Dimensioning is not completed for this sample. One of the goal to find a solution with simplicity but sufficient requirements for secure design.

Could you give some tips in case with manufacturing new part. After final machining cladded faces with NDT you are identifying places with porosity with thin layer in compare whole thikness of inlay. Obviously material have to be extract up to solid inconel. Question is: have to be cut out...