IT LOOKS LIKE YOU HAVE A SQUARE PLATE IN WHICH YOU WANT A STANDARD 4 HOLE PATTERN.
YOU NEED TO ESTABLISH ANOTHER VIEW THAT IS SURFACE -A-. WHICH IS USUALLY THE LOCATE FACE. THEN ALL YOU SHOULD HAVE TO ASK FOR IS TRUE POSITION TO -A-B-C- AS YOU HAVE PARTIALLY SHOWN.
WHEN YOU COMPLETE THE...
If I were to inspect this from a customer with this drawing, I would break it up into 4 seperate enities and divide up the positional tolerances equally. But there I go editing the print to solve my problem and who would tell me that I'm correct.
So I would have to say the boundary would be...
alcoa has their mind buried. since they have bought all of the old manufacturers and consolidated everyone, they have lost a lot of talent that would be able to help you. you will either have to go up the food chain to get an answer or try to find an alternate to alcoa.
i hope there will be...
from a manufacturing standpoint only. this material moves at heat treat and will change dramatically after hardening.
i was browsing and found this site about the material. I'll make sure I do my homework before asking a question here. I would say the state the same things as were said when...
I will give somewhat on this issue. If we are doing tooling then yes all I need do is tell them the thread required (plus in size it heat treat is required) and min thread depth along with the drill depth.
When I'm processing a job I do not want the operator or the inspector or the tool setter...
The right choice would be circular (but see below).
Just a thought on this subject - why does it matter? If the holes are the datums disregard the following.
I'll explain my thinking. The holes will be redrilled and the material is alum (which is soft). So if the hole sizes are not...
If I'm reading it right. The serrations are the same as spline in that they have spaces and teeth. I would call out a space on the serration and give an angularity tolerance from the center of the space to the flats.
If you can I would machine the serrations 1st then machine the flats to the...
Kenat I agree you have he right call outs on the thread depths. I would however call out a depth to a cross hole even it is a reference dimesion.
as for Matt Lorono why are you having the guy on the floor going to look up some other piece of paper, chart or spec to find out what drill size is...
Wow - you made me open a book to see what your subject is. Being in the aerospace arena if we need to, we will grind the holes to the position. It gets expensive but the parts travel well when in use and they do meet the design intent.
Thanks for the information I’m getting to like this forum.
I've just got myself in a similar position. I'm a checker for processing on aircraft parts a new company which is trying to establish a manufacturing house in Romania. The talent pool is not there yet but it will be. They have been trying to get the place up and running for approx 3 years...
This post was moved over to this forum at the recommendation of Kenat.
I'm looking thru the ANSI B92.1 spline book (table #3) and trying to find out if the profile tolerance needs to be compensated as the tooth thickness or space width. I believe that the book reads that the multiplication...
