Advanced Joining

Materials joining is one of the oldest manufacturing processes which can be traced back to the Bronze Age. In general, joining is divided to three main categories:

  1. Metallurgical Joining or Welding (e.g., resistance welding, laser welding, arc welding, solid-state welding, and etc.)
  2. Mechanical Joining (e.g., fasteners, self-piercing riveting, clinching, and etc.)
  3. Chemical Joining (e.g., adhesive bonding)

 

 

One of the earliest examples of welding: circular boxes made of gold from over 2000 years ago which appear to have been made by pressure welding lap joints together [source: Ancient Resource]

 

 

 

These days in the automotive, aerospace, medical device, fashion, appliances and various other industries, there is a primary need for creating multi-material structures. Such structures require developing novel joining techniques.

 

 

Application of materials joining in various industries

 

 

 

 

The overarching goals of our advanced joining group are summarized below:

  1. Developing predictive computational models capable of capturing the essentials of structure development during a variety of joining processes
  2. Conducting experimental tests to validate the numerical results
  3. Performing advanced materials characterization to investigate the microstructure evolution, mechanical behavior, and interfacial defect(s) during various joining processes
  4. Designing and developing novel hybrid joining methods with an emphasis on dissimilar and bio-compatible materials
  5. Collaborating with the data analytics research group to analyze and promote the data generated and measured from the numerical and experimental efforts and utilizing them in the next generation of high-performance robotic welding machines
  6. Design of improved joining systems for composites materials

Below you can find a couple examples from our past and current research projects:

Solid State Welding

 

Solid State Welding

Solid State Welding Simulation

Self-piercing Riveting

Self-piercing Riveting

Adhesive Bonding

Adhesive Bonding

Laser Welding

Laser Welding

Self-piercing Riveting

Self Piercing Riveting Simulation

Adhesive Bonding

Adhesive Bonding Simulation

Laser Welding

Laser Welding Simulation

Novel Joining Systems: Chinese Finger Puzzle

  • Compression multiplies shear strength
  • Joint body design increases bending strength
  • Multi-level failure characteristics
  • Best of both joining systems

 

Concentration Faculty