where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

- Login

Home Exhibition Archive Forum Jobs Members Events Directory NDT A-Z

PBP Optel sp. z o.o.
Weare searching new ways - in ultrasonic techniques- in creation of new productsUltrasonic instruments - Ultrasonic Testing Card

480 views

Technical Discussions

Dale Thorpe

01:11 Sep-08-1999
NDT of Fine Wire

AMS is a contract NDT service company to the automotive safety industry, specifically high volume ultrasonic examination of Airbag canister and inflators. We are currently involved in an R&D program for one of our clients that has brought to us a most unusual problem, at least for us.

The problem is brittle fracture of wire in their ignitors. The wire, or more correctly Bridgewire is used in pyro-technic devices and ordinace explosives. The brigewire is 98% platinum and 2% tungsten. The diameter is 0.00075" (in). Each spool contains an average of 7,000ft and as many as thirty spools are being consumed daily.

Wire that has failed will have a lower tensile <170,000 and low elongation <6%.

I would be interested in knowing if any one on this thread has had any experience with this type of problem?

Dale Thorpe
President
AMS (602)442-1899
dale@ndt-inspection.com

			Reply
Translate Close

PL Sorenson

04:00 Sep-09-1999
Re: NDT of Fine Wire : AMS is a contract NDT service company to the automotive safety industry, specifically high volume ultrasonic examination of Airbag canister and inflators. We are currently involved in an R&D program for one of our clients that has brought to us a most unusual problem, at least for us.

: The problem is brittle fracture of wire in their ignitors. The wire, or more correctly Bridgewire is used in pyro-technic devices and ordinace explosives. The brigewire is 98% platinum and 2% tungsten. The diameter is 0.00075" (in). Each spool contains an average of 7,000ft and as many as thirty spools are being consumed daily.

: Wire that has failed will have a lower tensile <170,000 and low elongation <6%.

: I would be interested in knowing if any one on this thread has had any experience with this type of problem?

: Dale Thorpe
: President
: AMS (602)442-1899
: dale@ndt-inspection.com

You might want to contact Sandia's Explosive Technology Group. See http://www.sandia.gov/explosive/labs.htm
It appears they have sufficient expertise in this area to be able to help.

Pete Sorenson

P.L. Sorenson - Technical Consultant

			Reply
Translate Close

Mark Davis
Teacher, And Consultant
University of Ultrasonics, Birmingham, Alabama, USA, Joined Mar 2000,

⁸⁵

Mark Davis
Teacher, And Consultant
University of Ultrasonics, Birmingham, Alabama,
USA,
Joined Mar 2000

⁸⁵

00:39 Dec-02-1999
Re: NDT of Fine Wire Dear Dale,

This looks like a digital radiography solution. One you could radiograph the product with film and then digitally enhance the film to look for the defect.

Or just shoot the parts on a digital plate and then enhance the images to look. We can also use geometric enlargement to images the wires.

Sincerely,

J. Mark Davis

My number is

			Reply
Translate Close

You will receive an email when a new message of this topic appears

Product Spotlight
EKOSCAN Phased Array
Stand EKOSCAN
In order to always fit your needs, EKOSCAN can manufacture any type of UT transducer, either convent
...
ional or Phased Array. As an ISO 9001: 2015 certified company, EKOSCAN is extremely careful as far a material selection and manufacturing processes are concerned. Our probes guarantee our customers the benefits of latest innovations regarding piezo-composite, backing, impedance adaptation layer, etc. Specific probes for hostile environment: high temperature, high pressure, corrosive environment,etc. Specific probes designed to fit your specific application: optimization of every parameter to guarantee you the best detection.
>
3 Showcases
Magnetic X-Ray Pipeline Crawler
Stand ZHONG YI NDT CO., LTD
Zhong Yi brand pipeline crawler is magnetic/micro-video controlled crawler with DC X ray unit inst
...
alled for checking welding of pipeline. Move steadily inside the pipeline 6''-60''diameter with speed of up to 18m/min, Max. moving diatance 5 kilometers and provide the efficient inspection of the pipeline.
>
5 Showcases
Navic - Steerable Modular Automated Scanner
Stand JIREH Industries
The Navic is a modular, motorized, steerable scanner designed to carry multiple attachments used
...
in various scanning and inspection applications. The Navic is capable of weld scanning (girth welds and long seam welds), automated corrosion mapping, and tank scanning.
>
5 Showcases 5 Videos
SONOAIR - air-coupled Phased Array Ultrasonic Inspection System
Stand SONOTEC Ultraschallsensorik Halle GmbH
For highly attenuating materials, the performance of the system is critical. The ultrasonic sensors,
...
the scanning area and the system settings should be flexibly adapted to the test task and the material. These high expectations are met with the new and modular testing system SONOAIR. With the world’s first air-coupled phased-array UT inspection system SONOAIR we developed a technology that works with up to 4 transmitter and receiver channels with freely configurable square wave burst transmitters as wells as low noise receiving amplifiers.
>
5 Showcases 5 Videos
more Showcases

Share...

Home

Exhibition