Friction Bit JoiningBYU Women in Manufacturing

Brigham Young University, Provo, UT

The Team

• Rebecca Madsen• Shuan Chavarria• Janel Mayfield• Aislinn Macintosh• Eric McKell (Advisor)

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TEAM PHOTO

Objective

• To improve the quality and strength of joints of two dissimilar metals by 5% using the Fluke temperature tools. Tools will be used to measure the temperature reached during the joining process.

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Methodology

Temperature Modules:• Connected to work-holding system• Captured temperature during joining process at the joint location• Used graphs and generated excel file to analyze temperature trends and see

what temperature yields a stronger joint

Thermal Imager:• Pictures taken during joining process to see which locations reach the highest

temperatures• Shared pictures with other teammates to update team on results

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Results

• From the videos taken and temperatures gathered, we were able to see that our fixture was not holding our samples well enough. Our joints were not reaching a high temperature.

• We changed our fixture and saw more consistent temperatures in our process.• The new joints were higher in strength.

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Impact & Recommendations

• How did your project make a difference?• From our project we were able to improve the temperature control and strength

for friction bit joining. Overall, we increased the strength of the joint by…%. With the tools we were able to see discrepancies in temperature throughout the joining process of two metals. The Fluke Connect tools were important because they allowed us to record and track the data from each joint.

• Would you recommend that others apply your process? If so, what specific advice would you give them? (Aka, workflow steps, process change, what to look for, etc.)

• We would recommend that others use our process of friction bit joining because it produces a better joint between two dissimilar metals. We changed the fixture holding the two metals down and found that this was effective in helping to increase the temperature to an ideal heat. We recommend this method to be used by technicians because…it creates more efficient and effective joints? …

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Results

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Spindle Speed Tensile Strength (lbs) Max Temp (F)2000 1628 295.42000 1744 312.82000 381 238.73000 339.3 339.83000 133.7 360.83000 694.8 328.84000 295.3 216.34000 1292 194.34000 511.7 203.9

*The fixture was not clamped correctly for this run. However, it follows the trend of low temperature=poor performance

*

Lessons learned

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• Temperatures created during the friction bit joining process affected the strength of the joint

• The structure of the fixture being used to hold the samples in place affected the temperatures reached when joining two dissimilar metals

• A higher temperature is desired to achieve a stronger joint• We were surprised by how much changing the fixture improved the

strength of the joint• We were surprised by the

Impact & Recommendations

• How did your project make a difference?• From our project we were able to improve the temperature control and strength

for friction bit joining. Overall, we increased the strength of the joint by…%. With the tools we were able to see discrepancies in temperature throughout the joining process of two metals. The Fluke Connect tools were important because they allowed us to record and track the data from each joint.

• Would you recommend that others apply your process? If so, what specific advice would you give them? (Aka, workflow steps, process change, what to look for, etc.)

• We would recommend that others use our process of friction bit joining because it produces a better joint between two dissimilar metals. We changed the fixture holding the two metals down and found that this was effective in helping to increase the temperature to an ideal heat. We recommend this method to be used by technicians because…it creates more efficient and effective joints? …

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Impact & Recommendations

• How did your project make a difference?• From our project we were able to improve the temperature control and strength

for friction bit joining. Overall, we increased the strength of the joint by…%. With the tools we were able to see discrepancies in temperature throughout the joining process of two metals. The Fluke Connect tools were important because they allowed us to record and track the data from each joint.

• Would you recommend that others apply your process? If so, what specific advice would you give them? (Aka, workflow steps, process change, what to look for, etc.)

• We would recommend that others use our process of friction bit joining because it produces a better joint between two dissimilar metals. We changed the fixture holding the two metals down and found that this was effective in helping to increase the temperature to an ideal heat. We recommend this method to be used by technicians because…it creates more efficient and effective joints? …

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Impact & Recommendations

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Thank You!