Low power, cylindrical heating element in a swaging anvil assembly heats the material being worked on. The increased ductility of heated material results in crack-free deformation

Crowell, J. W.

English

NASA Technical Reports Server

May 1966	 Brief 66-10206 
NASA TECH BRIEF 
.	 .	 .	 .	 .	 .... 
NASA Tech Briefs are issued to summarize specific innovations derived from the U. S. space 
program and to encourage their commercial application. Copies are available to the public from 
the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Low Power Heating Element Provides Thermal Control During Swaging Operations 
The problem: 
To supply heat to materials during swaging opera-
tions. Cold swaging of electrical terminals often re-
sults in cracking. 
The solution: 
The use of a low power, cylindrical heating element 
in a swaging anvil assembly to heat the material being 
worked on. The increased ductility of heated ma-
terial results in crack-free deformation. 
How it's done: 
A standard swaging tool is modified by attachment 
of a heating device in its base. The heating device 
keeps the swaging anvil in intimate contact with a drill 
rod that holds a low power heating element. The heat-
ing element portion below the drill rod is encased in 
potting compound.
Anvil
Drill Rod Bolt 
Tool Base  
r 
	
?T 
I	 II 
	
'	 - 	
r	 r-
- 
It	 I 
Drill Rod
Heating Element 
Heating Element  
Potting 
Compound 
Power supplied to the heating element by a regu-
lated source causes heat from the element to be con-
ducted to the anvil through the drill rod. Items being 
swaged are thus heated by the anvil. 
Notes: 
I. This heating technique eliminates cracking of 
electric terminals being swaged, saves time, and en-
ables the terminals to be installed correctly. 
2. The heater from a soldering iron may be used as 
the heating element. 
3. Inquiries concerning this invention may be di-
rected to:
Technology Utilization Officer 
Marshall Space Flight Center 
Huntsville, Alabama, 35812 
Reference: B66-10206
(continued overteal) 
This document was prepared under the sponsorship of the National 
Aeronautics and Space Administration. Neither the United States 
Government nor any person acting on behalf of the United States
Government assumes any liability resulting from the use of the 
information contained in this document, or warrants that such use 
will be free from privately owned rights.
https://ntrs.nasa.gov/search.jsp?R=19660000205 2020-03-11T17:31:29+00:00Z
Patent Status: 
Inquiries about obtaining rights.for the commercial 
use of this invention may be made to NASA, Code 
GP, Washington, D.C., 20546. 
Source: James W. Crowell
of Chrysler Corporation, Space Division
under contract to
Marshall Space Flight Center 
(M-FS-457) 
Brief 66-10206	 Category 05


Low power heating element provides thermal control during swaging operations

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