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Powder injection moulding in North America - upbeat again
Feature article: PIM International, Vol.1 No. 3 September 2007, pages 25-31, 3711 words
College of Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182-1326, USA
Introduction
North America was at the forefront of the early development and application of PIM technology, however in recent years market growth has failed to live up to expectations. Professor Randall German reports that the future is now looking good for PIM in North America, thanks in part to the growing acceptance of the technology in the automotive sector.
While putting together this status report on powder injection moulding in North America, the words from Charles Dickens echoed in my mind - 'It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, …' The experienced practitioners did not say it quite this way, still these opening lines from A Tale of Two Cities probably best condense many conversations into a few words.
This report is on powder injection moulding (PIM) in North America, which is dominated by the activities in the USA. It includes custom and captive moulders, as well as metal, ceramic, and carbide powder variants. However, this treatment ignores other North American net-shaping techniques that are often included under the label of 'metal injection moulding' such as aluminium and zinc die casting and magnesium thixomoulding.
In the early days of PIM, North America dominated the field. However, in the past few years the landscape in PIM parts consumption and production shifted. Like many other products, North America is moving to a substantial reliance on imports - both PIM parts and assemblies containing PIM parts. But that situation might change since currency exchange rates now make it favourable to invest and produce in North America. Another factor having impact on North America is acceptance of PIM by the automotive industry. Several firms report strong growth in that direction. Indeed, it seems almost everyone in the field has at least one 'secret' high production volume project in the works.
To compile this report, a wide cross-section of the industry was interviewed. These conversations repeatedly spoke of recent industry retrenchment, repositioning, but now solid growth prospects. Those companies surviving the economic slow-down are now very conservative. Meanwhile, as PIM firms are purchased by investors the culture is changing from the former technology focus to a financial emphasis...
Further sections of this article include:
- What happened in 2006?
- What is happening now?
- Future
- Statistics
- Market and application
- Geographic distributions
- Materials
- Strategic moves
- Future prospects
- Technology support: research for economic development
Figures and Tables:Fig. 1 This pie chart gives the approximate partition of applications for PIM in North America for 2006. Fig. 2 Breakdown of PIM in North America by materials used Fig. 3 The geographic distribution of PIM in North America based on four similar sized population groupings, both in terms of sales and number of firms Fig. 4 Full three-dimensional computer simulations of the moulding process for moulding a hollow copper fitting as performed using PIMSolver from CetaTech, showing a) velocity contours, b) filling time, c) average temperature, and d) pressure distribution with the weld line indicated (images courtesy of Seong Jin Park and Young-Sam Kwon) Fig. 5 PIM copper part fitting as simulated in Fig. 4 |
_______________________________ For a detailed report of the global powder metallurgy industry please view the IPMD Global Market Review. The 13 page report reviews key statistics in regional and global shipments relating to ferrous and non-ferrous PM products, hardmetals, diamond tools, and powder-based magnets. Additionally, two special insets review PM’s special relationship with the automotive industry and the accelerating global growth in the powder injection moulding sector. ____________________________________ |















