Formulation Material Selection

Bonding Dissimilar Materials: How to Reduce Internal Stress Levels

Bonding Dissimilar Materials: How to Reduce Internal Stress Levels
Language: English
Length: 90 min
Recorded on: 11 Jul 18

Package Includes

6 month access to Course Recording, Presentation Slides, Q&A Transcript

Course Description

Prevent premature adhesion failure while bonding dissimilar materials (LSE plastics, metal, composites, ceramics…) by efficiently managing the problem of internal stress and curing shrinkage.

Edward Petrie will share how to deal with differences in materials properties (shrinkage, coefficient of thermal expansion (CTE)…). He will also discuss formulation optimization tips & the impact of joint designs & cure conditions.

Note- This Online Course is also beneficial for Coatings Formulators
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Edward M Petrie
Edward M Petrie
EMP Solutions
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Edward Petrie has been active in the adhesives industry for over 35 years, both in the formulation and end-use sides. He has a BS (Chemical Engineering) and MS (Polymer Science) degrees from Carnegie Mellon University and an MBA from Duquesne University.

Throughout his industrial career, Mr. Petrie has been employed by two major global corporations ABB and Westinghouse as an internal consultant in adhesives and polymeric materials. In both corporations, he was part of the Central Research Laboratories and assisted all of the divisions within the organization.

His expertise includes material and process selection, testing, formulating, substrate preparation, and quality control, with emphasis on the end-user application and performance requirements. Applications include structural and non-structural joining of all materials. Mr. Petrie is also an expert in joining polymeric materials by all methods, including mechanical fastening, self-fastening, and heat and solvent welding.

Mr. Petrie has authored over 100 papers on adhesives as well as the popular Handbook of Adhesives and Sealants (McGraw-Hill, October 2000) and Plastic Materials and Processes – A Concise Encyclopedia (John Wiley & Sons, August 2003). He has also given seminars and adhesives and adhesion to corporations, universities, and government organizations.

Mr. Petrie is an independent consultant and sole proprietor of EMP Solutions. He is also a Technical Advisor and Consultant to adhesives.specialchem.com, an online service platform dedicated entirely to adhesives and sealants.

Why should you view this course?

The need to join dissimilar materials is growing in light of advances in technology to decrease weight, improve performance, and reduce cost. Being an evolving specialized technical field, bonding dissimilar materials (joining plastic to metal) continues to be a challenge, forcing you to face early product failure and dissatisfied customers. Join the course and:

  1. Understand parameters impacting internal stress levels in dissimilar joints (material properties, formulation, cure conditions, joint design...).

  2. Optimally bond hybrid structures by knowing strategies and emerging technologies in the industry.

  3. Reduce revision & product development time by gaining knowledge about the best practices to develop successful solutions.

Who should join this course?
  • Adhesive formulators and design engineers involved in developing solutions (adhesive formulations, joint designs, etc.) to bond dissimilar materials in hybrid structures.

  • Coatings formulators facing challenges in coating plastics and other LSE (low surface energy) substrates and in reducing stress between two layers (multi-layer coatings, recoatable coatings...).

  • This course is also useful for those engaged in failure analysis of adhesive-bonded joints.

  • This course is suitable for intermediate level proficiency
    Intermediate
Course Outline

Why Bonding Dissimilar Materials is Difficult

  • The Problem of Internal Stress
  • Problematic Applications

Influence and Resolution of:

  • Bondline Imperfections
  • Coefficient of Thermal Expansion (CTE) Differences
  • Cure / Drying Shrinkage
  • Different Modulus

Strategies to Reduce Internal Stress – Optimization of:

  • Adhesives Formulations
  • Joint Designs (Strap Joint, Butt Welding, Lap Weld Joint)
  • Cure Conditions

Test Methods

Technical Tips

30 mins Q&A session – Ask your queries directly from the expert!

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Bonding Dissimilar Materials: How to Reduce Internal Stress Levels
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