Meet Miranda
Marcus, PhD
One of the few global experts in polymer joining, dedicated to solving your toughest weld failures. She turns complex academic science into practical, repeatable capabilities for your engineering team.
PhD- Doctorate
- PhD, Polymer Engineering
- Experience
- 20+ years in the field
- Trusted
- By major industries
- Expertise
- Global polymer welding
Miranda Marcus is one of a small number of specialists who work entirely at the difficult edge of polymer joining — where a weld either holds under scrutiny or it doesn't. Her work spans the full arc: choosing the right process, developing robust parameters, diagnosing failures, and validating that the result meets the standard.
What sets the practice apart is the translation. She turns complex joining science — ultrasonic, laser, and beyond — into practical, repeatable capability your engineers can own, rather than recommendations they can't act on.
Her published work and recorded sessions, collected below, are the public face of that practice — the thinking the consulting and training are built on.
Selected writing & research.
Comparing Methods for Plastics Assembly
A side-by-side look at the major plastic assembly processes to help engineers choose the right fit for their application.
Potential Pitfalls in Ultrasonic Plastic Welding
Common mistakes that compromise ultrasonic weld quality — and how to avoid them before they reach production.
The Benefits of Servo-Driven Ultrasonic Welding
How servo-driven systems improve process control, repeatability, and weld consistency over pneumatic alternatives.
Aesthetic Assembly — The Art to Attractive Bonding
Strategies for achieving cosmetically acceptable joints when appearance is as critical as structural performance.
What Happened to Your Weld Quality?
A diagnostic guide to identifying and addressing the root causes of ultrasonic weld quality degradation.
Welding of Selected Dissimilar Polymers via Viscosity Matching
Peer-reviewed investigation into joining incompatible polymer pairs by matching melt viscosity to achieve a true weld.
The Effect of Non-Visible Surface Contamination on Ultrasonic Weld Quality
Research quantifying how invisible surface contaminants degrade joint strength in ultrasonic welding.
Development of an Approach to Determine Minimum Amplitude Required for Ultrasonic Welding
A systematic method for establishing the minimum viable amplitude threshold to initiate and sustain a reliable weld.
Video insights.
Ultrasonic Welding Design Mistakes That Can Cost You Later
When Plastic Welds Fail: How to Find the Real Root Cause
Plastic Weld Testing: Why Numbers Alone Are Not Enough
Is It Really Plastic Welding? The Science Behind a True Weld
Which Plastic Welding Process Is Right for Your Product?
Stop guessing on plastic welds.
Get the expert insight you need to fix your production and upskill your team. Tell us about your challenge and we'll take it from there.
Not ready to talk? Download the brochure — capabilities, engagement models, and the methodology behind the work.