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9/15/08 - Moore Technology will be attending the Medical Design & Manufacturing Midwest (MD&M) Show in Chicago from September 23rd - 25th, Booth 3037.

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Medical biopsy jaw required expensive EDM process to achieve critical, complex final geometry needed for very small precision part



Home > Case Studies > Industrial: Sewing Machine Thread Looper  

Case Study # 2 - Industrial: Sewing Machine Thread Looper

Case Studies: Engineering and Contract Manufacturing Sales, Moore Technology, Indianapolis, Indiana, Serving Industry Since 1990


This case study illustrates how Moore Technology can help reduce the number of processes and secondary operations needed to produce complex, polished, de-burred parts with state-of-the-art processes like Metal Injection Molding (MIM) and Electrical Discharge Machining (EDM).
 

This commercial sewing machine thread looper required numerous machining and polishing operations to produce an acceptable finished part from an investment cast blank, a costly and time-consuming process.

Sewing Machine Thread Looper

Application: Commercial sewing machine thread looper

  • Wear surfaces induction hardened to HRC 55MIN (microhardness)
     
  • Zinc plated for corrosion protection
     

Problem: Current version of stitching machine required numerous machining and polishing operations to produce an acceptable finished part from an investment cast blank.

  • Part had small diameter holes of .043 (+/- .005) and .31 (+/- .002 ) which entered and exited through a .047(+/- .005) wide slot to form a thread path which must be completely free of burrs
     
  • Costs were too high to polish, buff and de-burr parts
     

Our Solution: We developed a better way. Previously machined features would be incorporated into a single MIM process.

Additionally:

  • Company logo was added to part for a small one time tool charge
     
  • EDM was used to produce burr free holes with excellent finishes for stitching thread
     
  • We helped our customer identify and specify materials, heat treat and plating options to optimize part performance while holding down costs
     

Results: Utilization of the MIM process enabled us to:

  1. Significantly reduce secondary machining operations
     
  2. Virtually eliminate polishing operations
     
  3. Improve product consistency and quality
     
  4. Reduce the cost per part

 


Call 317-862-9185 for precision engineering and/or manufacturing assistance.

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Moore Technology, Inc.  |  8047 Raindance Trail  |  Indianapolis, IN 46239 USA
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