Featured February 11, 2005

Case Study Archives

The TPR chatted with Jim Knirsch, president of RSP Tooling, Inc. in Solon, OH.  RSP Tooling is breaking ground in the area of rapid tooling technology and Knirsch describes how the technology works and could benefit toolmakers and their customers both in the U.S. and globally.

1) What is your company niche and what does your company do that is notable,
unique or different?   

RSP Tooling, LLC is commercializing an invention from the Department of Energy that produces tooling, dies, and molds directly from molten metal, thus reducing the cost and delivery time. The process is an indirect spray form process that can make tooling from any metal for any process.  Any alloy that is used for tooling today can be used in this process including nickel-chrome-iron metal alloy (called Inconel), steel, copper, and aluminum.   

Starting with a CAD model of a tool, we create a plastic tool from it using stereolithography.  Then we make a ceramic model of the plastic tool and basically spray molten metal onto that, continuing to spray until we get the desired thickness.  Then the ceramic, which basically is what forms the cavity in the tool, is disposed of.  RSP stands for Rapid Solidification Process.  What’s significant in that is that we atomize the metal down to as small as 5 microns.  When the metal hits the ceramic, because of the small size of the droplets, they freeze very quickly, thus the rapid solidification.  This process results in extremely fine grain structure and the alloys generally stay in solution and there is very little internal stress. 

We build molds for plastic, forging, die casting, extrusion, glass forming, perm molds and more – basically any metal tooling for any process.  One of the advantages is that complexity doesn’t really affect the cost of the tooling because the cost to make the model, the ceramic and the spray don’t change based on shape.  Our major customers currently are forging, die casting, and plastic injection processors.  Forgers like it because there is no other way to make rapid tooling that can hold up to forging operations.  In plastic injection there are other rapid processes and the fact that we can get extremely long tool life is not always a selling point.  Generally speed and cost appeal to those customers. 

There are two limitations to this process.  One is standing steel features with ratios above 3 to 1 length to width.  The reason for that is we’re spraying into a hole and it tends to want to close the hole off before it’s full.  The other limitation is size.  Right now we’re limited to about 7 inches by 7 inches and that’s basically a monetary limitation.  There is no limitation to the process, and the returns are exponentially better on the bigger tools.  Our costs don’t even double if we go to 50 times bigger, giving our customers an excellent price.  Right now our operation can turn a tool around in two weeks.  The actual spray time to make a tool is 8 minutes.  You can potentially turn a tool around in five or six days depending on your operations.  Our standard machine can make about 2,000 molds a year.  A new machine design can make about 10,000 molds.  This takes us into industries I never really thought about before, such as shoe making.  I’m getting a lot more interest from China and India than from the U.S. at this point, though I am resisting that.

We have a worldwide exclusive license with the Dept. of Energy for all of the patents as they apply to tooling with this machinery.  There are other applications for the machines that we are not involved in.

2)















 

 When and how did you get into the industry, what attracted you to it?

The company was formed in January of 2002. I started the company after I read about the process in R&D Magazine. I was working as an engineering manager at a tool & die shop at the time.  Dr. Kevin McHugh, who works at a dept. of energy lab at the Idaho National Lab, invented
the process.  He had won the R&D 100 Award.  I recognized the potential of this revolutionary process in the American tool and die industry.  I contacted Kevin and he told me that the process was being marketed as a way to produce prototype tooling, but that it actually produced tools of as good or better quality as production tooling.  I brought the process back to the company I worked at and they were going to use it.  Unfortunately the company was bought out and the new owners were not interested in the new technology.  So I quit and started RSP Tooling.

3)

Relate a notable "best time" for your company.   

The best times were first when the financial package to form the company was finalized and the second was recently when the development stage was concluded and the machine ran well, producing high quality production tooling.

4)

Similarly, relate notable challenges that your company has overcome.   

The major challenges were putting together the financing for a start up company immediately after 9/11 and scaling up the lab unit onto a production machine. The development of the machine took over two years because of the need to have it in continuous operation. When dealing with atomized molten metal there are some pretty serious component life issues to overcome.  Molten tool steel is run at 1600 degrees C, and most alumina and ceramic components fail at 1700 degrees C.  So there’s a fine line there.  We’ve replaced materials from every component that is associated with alumina and ceramic in order to improve that ratio.  In fact two of the materials we’re currently using weren’t even invented when we first started.  As a result I’ve become an expert at so many subjects that I didn’t know existed before.

5)



















6)

When you are working on projects with your customers, what aspects would you like them to better recognize?

The RSP Tooling process is still in its infancy. We need customers who are willing to work with us to bring the process up to its full potential.  We should be able to get this process down to making a tool in a 24-hour period.  We’d also like to take it in another direction, and increase size capabilities.  Our next size goal is 20 inches by 20 inches.  One of the issues we have is that we just make the cavity and we don’t have the capability of putting in ejector pin holes, water lines, etc.  I contract out that part of the project.  Given that there is no machining, accuracy is relatively good in the +/- .002” range.  But while the first shot might not be perfect; we can adjust quickly on the second one.


List newly acquired technology, machinery or key  personnel (in last year).  

We have just finished developing the “ToolSpray 100” a machine that can produce a 50 pound tool every three hours from any metal for any process.

7









  

Has your company recently expanded? Plans to  expand or form partnerships/alliances? 

The company is interested in forming alliances with companies interested in forming service centers around the USA.  One company actually suggested getting 8 tool companies together and forming a separate company that buys and operates the RSP tooling machines basically in a non-profit situation where each company gets 1/8th of the profit.  A small tool shop doesn’t really need these machines, but 8 tool shops could take good advantage of it cost-wise.  We’re flexible and open to suggestions on partnerships or alliances.

8) 

Are you involved in any industry organizations or educational programs related to the trade?   

I am a member of the Rapid Tooling section of the SME.  It’s a fairly new committee and we’re currently putting together an agenda and setting goals.

9) 




 

 What do you think about changes occurring in the industry due to globalization? How has it  affected the way you do business?  

I think that globalization is destroying the tool and die industry in the United States and that in the long run losing this type of industry will put us in a very dangerous position in such a hostile world. It is my hope that this process will make American tooling competitive and help protect the industry.

10) 

What will the industry look like in 3 to 5 years?  

I believe that this process will allow tools to continue to be built in the U.S. and that the manufacturing base will not disappear. Also, the need for prototype tooling will be eliminated since the RSP technology can make a production tool in the same time as most prototype processes.

Additional Background Information

The company was founded in January 2002.

It has 6 employees.

We only have one machine and occupy about 2,000 square feet.

The web site is www.rsptooling.com.

We have made tools for plastic injection, die casting, extrusion, glass forming, and forging operations. Auto industry, shoes, medical and appliance industries primarily.  Since we can do basically any process, we can serve almost any field.

Contact:
Jim Knirsch, President
RSP Tooling, Inc.
30555 Solon Industrial Parkway
Solon, OH  44139
Phone
440-505-6033 x 210

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