Bolts Manufactoring Books - Research For Definited Datas

[YourBolt]

Hello

I have been trying for a while to find some books on topic bolts
manufactoring. I have already tried to search on amazon but the most close books are:

http://www.amazon.com/Fasteners-Plu...=sr_1_1?ie=UTF8&s=books&qid=1297509692&sr=8-1

and

http://www.amazon.com/Carroll-Smith...=sr_1_2?ie=UTF8&s=books&qid=1297509692&sr=8-2

But I assume they aren't as much related to the bolts manufactoring as I would like to. From the bolts manufacturing book, I would like to construct list of:

- as many as possible failures on bolts that can occur while they are being produced (so while they are manufactored) from process point of view
- as many as possible failures on bolts that can occur while they are being produced (so while they are manufactored) from product point of view
- list of causes; WHY the failure occured
- list of consequences (= effects)
- list of possible solutions

I have found already few failures through google research but the problem, while researching, is that most of them are a matter of failures on bolts after they are already produced. This is totally different to what I search.
I need the failures (together with datas listed above) that are/might occur(ing) in manufactory of bolts WHILE (very important: WHILE) bolts are BEING ( ! ) produced. So I search for possible failures that occur in the manufactory.

May I please ask, if anyone knows any other book (or literature in general - even perhaps videos) which I should use to create those lists? Anything would be helpful, even companies names who I should call for some literature if exsist.

The direct lists probably don't exsist so I would have to get
book/literature first and with a help of this, through reading it, I could construct those lists. I don't need houndreds or thousands of entries. Around 40 different failures per process (cold heading, rolling, milling, therman treatment) and same amount per product is more than enough.

Of course I am aware that one single failure can also have several causes, as well as consequences and possible solutions.

Thank you in advance.

 

[kingnero]

As I used to work in a company where they developed, machined and assembled large diesel engines, and made their own (stretch) bolts, I'd say rolling the threads is a very critical process.
Even when doing so on a large scale, there are still several ways to mess up the bolts regularly.

Apart from the usual dimensional deviations, burrs or imperfections on the dies can ruin a whole batch of bolts.

Perhaps you want to talk to a thread rolling machine manufacturer, for failure modes due to the thread rolling process?

 

[YourBolt]

kingnero thank you for reply. You meant I should talk with machine manufacturer (as you typed) or bolt manufacturer? I need the collection of failures (with the rest of datas mentoined in my first post) that might occur in bolts manufactoring and not in "machine construction" - the actual machine somehow needs to be created to and im NOT asking about those failure. Only about the ones that might occur while bolts are being made.
Many articles that I found through google research "talk" about failures/crashes on bolts after they are created. Im not interested at this - its totally different topic. So when I found in engineering article some description of subject that is created (=contains) with bolts, this is not for me. For example if failure occurs due to overload, I stop reading the article because this means its a matter of failure after bolt is produced and not while is being produced so its not what I need.

Also I need to create the list of detailed failures. The ones such as "tool broke" or "wrong angle on screw detected in inprocess control check on rolling" is too general. Should be more exactly definited.

 

[YourBolt]

hello?

 

[TVP]

Hello YourBolt,

You will not find one or two reference books on this subject that have all of the information that you want. You will have to look through many different sources, such as technical books, industry standards (ISO 6157, etc.), technical articles in magazines and journals, and the information distributed in specialized training classes. ASM International has a number of books that have examples of fastener failures, etc. Do you have access to a university library so that you can review some of these books? Also, some of this information is not really available in the public domain, and instead is only known to experts who work for fastener manufacturers, equipment suppliers, heat treaters, etc.

Have you used Google Scholar instead of just the regular Google search site? Here is an example of a Google Scholar search for "cold heading" and defect:

http://scholar.google.com/scholar?a...as_sdt=1.&as_sdtp=on&as_sdtf=&as_sdts=5&hl=en

 

[YourBolt]

Hi TVP
I haven't used google scholar, will try it. By first look at it, it gives me only articles that require a payment to view entire ones. The ones that don't, are in chinese alphabet. But this is only by first look so I will keep trying to do the research also on this google scholar.
You asked me if I have access to university library, you mean to the one where I study? Yes of course I have and tried it already.

I have also worked in manufactory of bolts and can still go there to check something for diploma thesis purposes. But noone was there who would care for archieve of failures / causes / consequences (=effect modes) / solutions. At least not enough detailed ones. The failure "tool broken" is useless for me - its a way too general.

Im already also registered with ASME (

http://www.asme.org)

but noone of potential e-mentors reply, even staff people is extremly slow with replying.

I also tried Intota website, required from staff people some answer(s) before I join but they don't even reply.

Tried some obvious other solutions (such as messaging via e-mail bolts manufactories, quality assurance sections, around the world but noone replied).

So my question in the first post still remains.

 

[TVP]

YourBolt,

Google Scholar is a better tool for searching archived technical journals and other scientific literature. Most of the items it displays will not be freely available-- you will either have to pay to obtain them, or find them at a library, etc. As I mentioned before, you will have to obtain many different books, articles, etc. in order to piece together the information that you want. Here are three different articles that discuss fastener manufacturing defects either directly or indirectly:

Defects and defect avoidance in cold forging

http://alexandria.tue.nl/repository/books/496248.pdf

Fastener Technology Internation October 2003 article

http://www.accuratescrew.com/PDF/Fastener_Failures.pdf

"Failures Related to Heat Treating Operations"
ASM Handbook Volume 11 Failure Analysis and Prevention

http://www.getottenassociates.com/pdf_files/6072_0192_224_web.pdf

 

[YourBolt]

Thank you TVP, anyway this didn't help much. Im not fluent in English but I think its "cold heading" and not "cold forging". I mean the process which needs to be done before rolling (and also before cleaning - after each rolling process, cleaning of bolts is required) - so bolts without screw are produced.
Its good if I continue to search also with the basics of those four (or five) processes;
- cold heading
- rolling
- milling
- thermal treatment
- surface treatment

I don't know yet if I should even include in my thesis 5th process because its done outside the manufactory.

The basics of those processes, and trying to connect the theory as much as possible on bolts, would be good introduction to the 5 required lists mentoined in my first post.

 

[TVP]

Cold forging is the broad category, with cold heading (upsetting) being a narrower subset. If you carefully evaluated the first link, and understood it's content, then you would realize that it has content very much relevant to your inquiry. Good luck on your project.