| SII MegaDiamond, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100078462 | METHOD FOR USING MODIFIABLE TOOL CONTROL PARAMETERS TO CONTROL THE TEMPERATURE OF THE TOOL DURING FRICTION STIR WELDING - A new control variable is introduced, that when combined with previous dependent control criteria on other variables results in a control program that can create a superior weld while minimizing wear on the FSW tool, wherein the tool repeatedly experiences the same thermal and mechanical loading within specified control windows during every repeated weld sequence because flow stresses and tool loads are driven by temperature, and dependent control loops account for differences in material and heat that is transferred at different rates in varying locations throughout a friction stir weld. | 04-01-2010 |
| 20100038832 | Rotary holding device for gripping tool material at elevated temperatures through multiple collar assembly - A tool is provided that is capable of friction stir processing, friction stir mixing, and friction stir welding of high melting temperature and low melting temperature materials, wherein the collar is now divided into at least an inner and an outer collar coupled to the shank and the FSW tip, wherein new thermal barriers enable expansion of the inner collar to be directed inward to thereby create compression on the FSW tip instead of allowing the FSW tip to become loose in the tool at elevated temperatures. | 02-18-2010 |
| 20090294514 | FRICTION STIR WELDING IMPROVEMENTS FOR METAL MATRIX COMPOSITES, FERROUS ALLOYS, NON-FERROUS ALLOYS, AND SUPERALLOYS USING A SUPERABRASIVE TOOL - A friction stir welding system that enables clamping of a pipe to enable friction stir welding around the pipe OD, a movable mandrel that provides a counter-force to the pressure exerted on the outside of a pipe by a tool, and a system for providing friction stir welding and repair inside a nuclear vessel in an underwater environment. | 12-03-2009 |
