|
|
 |
|
|
Fraunhofer researchers develop new technology for hydroforming - Nickel Alloy Pipe by wang dong
|
|
|
Fraunhofer researchers develop new technology for hydroforming - Nickel Alloy Pipe by WANG DONG
|
|
| Article Posted: 07/12/2013 |
| Article Views: 65 |
| Articles Written: 1102 - MORE ARTICLES FROM THIS AUTHOR |
| Word Count: 660 |
| Article Votes: 0 |
|
Fraunhofer researchers develop new technology for hydroforming - Nickel Alloy Pipe |
|
|
|
|
|
Business,Business News,Business Opportunities
|
|
To all intents and purposes, nothing stands in the way of titaniumin terms of becoming a first-choice industrial material. It is apractically unlimited resource; it is stable and lightweight, butalso extremely malleable as well as corrosion and temperatureresistant. Nevertheless, this white silver lustrous metal remainsin the shadows of steel, chrome, nickel and aluminum when it comesto manufacturing. The reason for this is that efficient metalforming processes such as deep drawing or hydroforming can only beused in a very limited way. Titanium tends to adhere to theforming tools.
This leads to major damage which can causecomponents to fail in the worst case. This effect is amplified bythe extremely high temperatures of up to 800 C, at which titaniumhas to be formed , explains Andr Albert, group leader for mediabased forming technologies at the Fraunhofer Institute for MachineTools and Forming Technology IWU in Chemnitz, Germany. Premiere at EuroBlech In collaboration with his colleagues at the Fraunhofer Institutefor Surface Engineering and Thin Films IST in Braunschweig,Germany, he has developed a new technology for hydroformingtitanium car exhaust systems at elevated temperatures. This newmethod enables forming to be undertaken in a single process stage.Researchers are now presenting the initial results of the jointproject at the EuroBlech trade fair (Hall 11, Booth B06) from 23 to27 October in Hannover, Germany. Up until now, a minimum of three stages were necessary utilizingintermediate heat treatments which partially required processing atdifferent locations.
The scientists have now developed a processand custom tool which can withstand temperatures of over 800 C. Forming titanium at room temperatures leads to severe cold workhardening of the processed pipe. In order to prevent cracking, themetal requires frequent treatment by means of recrystallizationprocesses. This leads to extremely complex multi-stage formingprocesses which are not economically viable in large-volumeproduction of exhaust systems. This microstructural change can beavoided at extremely high temperatures , explains Albert.
The approximately 1.40 x 1.20 meter forming tool is manufacturedfrom high-performance materials such as nickel-base alloys whichremain stable at temperatures over 800 C without oxidizing. Aspecial coating, just a few micrometers thick prevents titaniumfrom adhering to the tool, which can lead to component cracking andsevere damage to the surface. Martin Weber, expert for newtribological coatings at IST says: At temperatures fromapproximately 500 C, titanium exhibits a strong tendency tocombine with oxygen and nitrogen from the surrounding atmosphere.For this reason, it is necessary to work with shielding gases atextremely high temperatures, such as argon, in order to preventoxidization of the titanium. After extensive testing with variousmaterials, we were able to develop the ideal coating for thespecial conditions encountered within the various temperatureranges.
Ideal for a broad range of applications Titanium is extremely versatile. Approximately 40 percent of theworldwide production is used in the aerospace industry. In thissector it is used, for example, in window frames, hydraulic linesand jet engine components. Additional applications include pipesand containers for the chemicals industry, seawater-resistantcomponents for offshore wind farms, implants, pacemakers orsurgical instruments as well as consumables such as bicycle framesand items of piercing jewelry. In the automotive industry, this versatile metal has only been usedfor high-end vehicles and motor sport applications up until now.However, it offers a great deal of potential, especially for massproduction of exhaust systems.
Due to the lack of cost-effectiveforming technologies for titanium, currently manifolds, exhaustpipes, catalytic converters and mufflers are primarily manufacturedfrom high-alloy stainless steel. In doing so, titanium would notonly be lighter a total weight advantage of 40 percent can beachieved per component. It is also more available titaniumbelongs to the ten most frequently occurring substances in theearth s crust.
I am an expert from Nickel Alloy Pipe, it usually analyzes various kinds of industry situation, such as Nickel Alloy Pipe, and many more. Welcome to visit!
We are high quality suppliers, our products such as Nickel Alloy Pipe , Titanium Round Bar for oversee buyer. To know more, please visits Welded Titanium Tube.
Related Articles -
Nickel Alloy Pipe, Titanium Round Bar,
|
Rate This Article  |
|
|
|
|
|
Do you Agree or Disagree? Have a Comment? POST IT!
| Reader Opinions |
|
|
|
|
|
|
|
|
|
| Author Login |
|
|
 |
Advertiser Login
ADVERTISE HERE NOW!
Limited Time $60 Offer!
90 Days-1.5 Million Views
|
|
TIM FAY
After 60-plus years of living, I am just trying to pass down some of the information that I have lea...more
|
|
|
|
|
LAURA JEEVES
At LeadGenerators, we specialise in content-led Online Marketing Strategies for our clients in the t...more
|
|
|
|
|
ALEX BELSEY
I am the editor of QUAY Magazine, a B2B publication based in the South West of the UK. I am also the...more
|
|
|
|
|
GENE MYERS
Author of four books and two screenplays; frequent magazine contributor. I have four other books "in...more
|
|
|
|
|
SUSAN FRIESEN
Located in the lower mainland of B.C., Susan Friesen is a visionary brand strategist, entrepreneur, ...more
|
|
|
|
|
STEPHEN BYE
Steve Bye is currently a fiction writer, who published his first novel, ‘Looking Forward Through the...more
|
|
|
|
|
SHALINI MITTAL
A postgraduate in Fashion Technology. Shalini is a writer at heart! Writing for her is an expression...more
|
|
|
|
|
ADRIAN JOELE
I have been involved in nutrition and weight management for over 12 years and I like to share my kn...more
|
|
|
|
|
JAMES KENNY
James is a Research Enthusiast that focuses on the understanding of how things work and can be impro...more
|
|
|
|
