RAPID PROTOTYPING CENTER

Ken R. Davis, Director
Rapid Prototyping Facilty
Vogt Engineering Center, Room 101A
University of Louisville
Louisville, KY 40292

Tel: (502) 852-7599
FAX: (502)852-8890
E-mail: krdavi02@ulkyvm.louisville.edu

 

Rapid Prototyping Sample

The Speed Scientific School recently acquired a SinterStation 2000 selective laser sintering machine from DTM Corporation of Austin, Texas in November of 1993. Working from computer-based solid model files, this device constructs prototype parts by using a scanning laser to selectively melt powdered material in an additive, layered fashion. Multiple materials, nylon, glass-filled nylon, Trueform, and metal powder are currently available. The nylon parts produced on the machine are durable enough for many assembly and testing operations. This material is particularly well suited for snap fits. The Trueform material allows creation of patterns with fine details and features. This material can be used directly in conventional investment casting for metal part fabrication. The Speed School facility was also a beta test site for a rapid tooling module that will allow direct production of injection mold cavities from solid model files. Speed Scientific School is the only engineering school in the nation with a facility of this type. It is used to support both instructional and research activities.

The Rapid Tool process allows the quick fabrication of prototype molds from which injection molded prototypes can be created. So not only will the design aspects of a part be taken into account during evaluation, but also the material properties and the influence of the molding process, which are the same as those of a production part.

We have recently added a 3-D laser digitizer for reverse engineering applications. This will give us the capability to generate computer models of an existing part or pattern directly. This file can then be directly downloaded to create a rapid prototype part or input into a CAD system for design manipulation or modification.

Consortium Members

AT&T
Active Ankle Systems, Inc.
Black & Decker
Bluegrass Plastics Engineering, Inc.
Campbell Hausfield
Colgate-Palmolive Company
Crane Depot
Dagwood's
Eaton Corporation
Electronic Systems, USA
EMB Corporation
Emerson Electric
Eminence Speaker
GE Appliances
Grindmaster Corporation
Hi-Tech Mold & Tool, Inc.
Hillerich & Bradsby Co.
Holley Performance Co.
ISE (In-Sink-Erator)
Jones Plastics & Engineering
Kellems & Coe
Kentucky Fried Chicken
Kentucky Lottery
Lexmark International, Inc.
Louisville Ladder
MKM Machine Tool Co., Inc.
MPD/MPH, Inc.
Micro-Med, Inc.
Micro-Tech Automotive Industries
Multi-Metals, Inc.
Nautilus Corporation
Naval Ordnance Station Louisville
Omni Technologies, Inc.
Phase I, Inc.
Plastic Engineering Components
Polar Express Systems
Quick Drive USA, Inc.
Remington Arms
Robinson Nugent, Inc.
Sabin Corporation
Samtec
Smith & Nephew Richards, Inc.
Southeast Mfg. Technology Center
SWECO, Inc.
Thermodisc
Toro Company
Truecast Precision Casting
U. S. Electrical Motors
UniTrac Systems, Inc.
Vermont American
White Rodgers
Zabel Environmental Technologies
Zoeller Pump Co.

Consortium members are provided development time for making prototypes at $100 per hour on the SLS equipment with the total hours based on the individual members financial investment in the consortium for a three-year period.   Members have access to the ongoing research and development in the technology of the Selective Laser Sintering of alternate materials, e.g., polypropylene, metals, and ceramics.

Center Status

Center established 1st quarter 1994
Process based on sintering of particulates (polymers, metals)
Currently have 52 consortium members
Have prototyped 1,000 different geometries - 3500 parts
Helping small companies do product development
Beta test site for rapid tool module
Recent publicity in Courier Journal (2); Business First
President's Annual Report
Recently added capability for Reverse Engineering

For more information, contact:

Ken R. Davis, Director, Vogt Engineering Center, Room 101A;
Phone (502) 852-7599, FAX (502) 852-8890;
E-mail: krdavi02@ulkyvm.louisville.edu

Timothy J. Gornet, CAE Consultant, Vogt Engineering Center, Room 101;
Phone: (502) 852-0714, FAX (502) 852-8890;
E-mail: tjgorn01@starbase.spd.louisville.edu