Acoustic-energy based material deposition and repair

Abstract

Various embodiments include an acoustic-energy deposition and repair system that includes at least one Directed Acoustic Energy Deposition (DAED) tool configured to apply acoustic energy to feedstock material in at least one of three vibrational modes; and a drive system to move the DAED tool in at least one of three-coordinate positions. In various examples, the acoustic-energy deposition and repair system further includes at least one in-situ metrology tool mounted proximal to the DAED tool to measure a grain size of deposited material. Other methods, devices, apparatuses, and systems are disclosed.

1 .- 11 . (canceled) 
     
     
         12 . A Directed Acoustic Energy Deposition (DAED) tool configured to apply ultrasonic acoustic-energy to deform and deposit a feedstock material; the DAED tool comprising:
 an acoustic-energy coupling tool to deform, substantially athermally, the feedstock material based on a selected vibrational mode of the acoustic-energy coupling tool while the acoustic-energy coupling tool is at least partially in contact with the feedstock material, the applied ultrasonic acoustic-energy being selectable from at least one of three vibrational modes to couple the applied ultrasonic acoustic-energy from the DAED tool into the feedstock material; and   a transducer configured to produce the ultrasonic acoustic-energy to be applied to the acoustic-energy coupling tool.   
     
     
         13 . The DAED tool of  claim 12 , further comprising a test plate to measure uniaxial compression loading from the acoustic-energy coupling tool exerted upon the material feedstock. 
     
     
         14 . The DAED tool of  claim 12 , further comprising a feed-forward control system to direct the DAED tool in at least one of three-coordinate positions. 
     
     
         15 . The DAED tool of  claim 14 , further comprising a look-up table to be coupled to the feed-forward control system, the look-up table including, for each of the feedstock materials to be deposited, pre-determined grain structures for each of a plurality of variables including energy density, amplitude, frequency, and velocity of the DAED tool for a desired grain microstructure. 
     
     
         16 . The DAED tool of  claim 12 , wherein the transducer is configured to supply the ultrasonic acoustic-energy to the acoustic-energy coupling tool with at least one frequency selected from a frequency range of between about 5 kHz and about 350 kHz. 
     
     
         17 . The DAED tool of  claim 12 , wherein the transducer is configured to supply the ultrasonic acoustic-energy to the acoustic-energy coupling tool with at least one frequency selected from a frequency range of between about 5 kHz and about 60 kHz. 
     
     
         18 . The DAED tool of  claim 12 , wherein the transducer is configured to supply the ultrasonic acoustic-energy to the acoustic-energy coupling tool with at least one frequency selected from a frequency range of between about 60 kHz and about 180 kHz. 
     
     
         19 . The DAED tool of  claim 12 , wherein the transducer is configured to supply the ultrasonic acoustic-energy to the acoustic-energy coupling tool with at least one power level selected from power levels including 5 watts, 10 watts, and 15 watts. 
     
     
         20 . The DAED tool of  claim 12 , wherein the transducer is configured to supply the ultrasonic acoustic-energy to the acoustic-energy coupling tool with small-amplitude vibrations of about 0.5 micrometers to about 2 micrometers to be applied to the material feedstock. 
     
     
         21 . The DAED tool of  claim 12 , wherein the selection of the vibrational mode includes a first transverse mode in a first direction, a second transverse mode in a second direction that is substantially orthogonal to the first direction, and a longitudinal mode. 
     
     
         22 . The DAED tool of  claim 12 , wherein the DAED tool is configured to perform an in-situ repair of one or more components. 
     
     
         23 . The DAED tool of  claim 12 , further comprising a heating element to provide low-grade heat to at least one portion of the DAED tool or the feedstock material. 
     
     
         24 . The DAED tool of  claim 23 , wherein the low-grade heat is configured to provide approximately one-third of the melting temperature of the material to the feedstock material. 
     
     
         25 . At least one Directed Acoustic Energy Deposition (DAED) tool configured to deform and deposit a feedstock material; each of the at least one DAED tool comprising:
 an acoustic-energy coupling tool to deform, substantially athermally, the feedstock material based on a selected vibrational mode of the acoustic-energy coupling tool while the acoustic-energy coupling tool is at least partially in contact with the feedstock material;   a transducer configured to produce an ultrasonic acoustic-energy signal to be applied to the acoustic-energy coupling tool, the applied ultrasonic acoustic-energy signal from the acoustic-energy coupling tool being selectable from at least one of three vibrational modes to couple the applied ultrasonic acoustic-energy from the DAED tool into the feedstock material;   a coupling horn disposed between the transducer and the acoustic-energy coupling tool to couple and amplify the ultrasonic acoustic-energy signal produced by the transducer; and   a feed-forward control to apply one or more changes to the at least one DAED tool, the one or more changes selected from changes in at least one of energy density, an amplitude of the ultrasonic acoustic-energy signal, and a frequency of the applied acoustic signal to effect a plastic change in the feedstock material.   
     
     
         26 . The at least one DAED tool of  claim 25 , wherein the feed-forward control is further configured to control changes of a microstructure of the deformed and deposited feedstock material within a proximity of the acoustic-energy coupling tool. 
     
     
         27 . The at least one DAED tool of  claim 25 , wherein the DAED tool is configured to soften the feedstock material beyond an elastic region of the material and plasticly deform the feedstock material, thereby extruding the feedstock material 
     
     
         28 . The at least one DAED tool of  claim 25 , wherein the transducer is configured to convert an alternating current (AC) signal into the ultrasonic acoustic-energy signal. 
     
     
         29 . The at least one DAED tool of  claim 25 , further comprising a drive system to move the DAED tool in at least one of three-coordinate positions. 
     
     
         30 . The at least one DAED tool of  claim 25 , further comprising at least one in-situ metrology tool mounted proximate to at least one of the DAED tools. 
     
     
         31 . The at least one DAED tool of  claim 25 , wherein the DAED tool is configured to deform and deposit the feedstock material into a plurality of tracks of deposited material. 
     
     
         32 . The at least one DAED tool of  claim 25 , wherein the DAED tool is configured to deform and deposit the feedstock material into a plurality of voxels of deposited material. 
     
     
         33 . A method for deforming and depositing a feedstock material, the method comprising:
 selecting the feedstock material;   inserting the feedstock material into a Directed Acoustic Energy Deposition (DAED) tool;   selecting at least one parameter to control the DAED tool from parameters including selecting an energy density, and selecting an amplitude of vibration;   selecting a vibrational mode from at least one of three vibrational modes to couple applied ultrasonic acoustic-energy from the DAED tool into the feedstock material;   selecting a velocity of the DAED tool; and   deforming and depositing the feedstock material.   
     
     
         34 . The method of  claim 33 , further comprising selecting a grain structure for the deposited feedstock material. 
     
     
         35 . The method of  claim 33 , further comprising transmitting the at least one parameter to control the DAED tool to a feed-forward control system. 
     
     
         36 . The method of  claim 33 , further comprising adding low-grade heat to at least one of the DAED tool and the feedstock material.