Category Archives: Materials Science Engineers

Dick Kielty

posted March 2020

It is with deep sadness that we share the news that friend and past employee of MEE, Dick Kielty, passed away this week. 

For nearly his entire career, Dick worked Twin City Testing (now Element) providing metallurgical engineering consulting services to local industries.  He retired from Element but was he was not the retiring kind of engineer. Dick began working for MEE at age 73. His intent was to work part time with us for two years but two years turned into eight years and he officially retired at age 81.  We so enjoyed having him around that he remained on our staff email list and would join us at staff lunches after his retirement.

His technical expertise and years of experience were valuable assets to our team. He was a great mentor to the other engineers on staff and enjoyed sharing his knowledge whether it was done one on one or presenting staff training lectures. I think all of us in the materials science and engineering fields can agree that Dick was the role model as someone who was truly dedicated to the profession.

Dick Kielty presenting staff lunch and learn.

 

Nitinol Seminar

posted March 2020
Kurt Schenk and Neal Hanke

Kurt Schenk and Neal Hanke, P.E.

Kurt Schenk and Neal Hanke attended a one day seminar about Nitinol and how its unique properties apply to medical devices and designs. The primary topics for the seminar included structure, processing, mechanical properties, corrosion behavior, and fatigue life of Nitinol. MEE has been helping medical device manufacturers to successfully use Nitinol in their products for almost 25 years. Even with years of experience, MEE staff continually seeks out educational opportunities to keep up with the latest research on this intriguing material.

Welcome to MEE’s new intern, Kelsy Holtgrewe.  Kelsy received her Bachelor’s in Metallurgical Engineering from Missouri University of Science and Technology in December. She’ll be starting work toward a Master’s at Colorado School of Mines this fall. She has previous work experience in the materials labs of two large industrial companies so she is familiar with many of the processes and procedures in our metallographic and SEM labs.

MEE understands that internship programs are beneficial to both the student and the company.  Our busy materials science laboratories will provide Kelsy with a valuable real-world engineering experience this summer and our technical staff appreciates the opportunity to mentor new professionals in the field of metallurgical engineering.

Kelsy in the one of SEM labs at MEE.

MEE Staff Development

posted February 2020

Congratulations to MEE Associate Engineer, Henry Ahrenholtz, who recently passed the Fundamentals of Engineering (FE) exam certifying him as an Engineer in Training (E.I.T.). The FE exam is the first of two exams required for obtaining a Professional Engineer license. Prior to taking the second exam, E.I.T’s must complete four years of qualifying engineering experience under the supervision of a professional engineer. We look forward to working with Henry as he moves forward towards professional licensure.

Larry Hanke and Dan Grice will be presenting a talk on A Historical Perspective of Fracture Analysis at the February 19 ASM Symposium at Hennepin Technical College.  The theme of the symposium is “Materials Retrospect: 100 Years of Advancement” in recognition of the 100th anniversary of the MN chapter of ASM International. Other presentations at the event will cover topics such as advancements in the casting industry, metal additive manufacturing and breakthroughs in nitinol in medical device design.

Larry and Dan’s presention will review the history of fractography, including the historical development of the science, changes in the analytical tools, and some historical case histories.
The effective use of materials in various engineering applications requires an understanding of material properties, including conditions of material failure. Fracture is behavior that must be taken into account. The study of fractures over the years has had an important role in materials engineering to improve product performance and reliability.

Dan Grice, P.E. and Larry Hanke, P.E.

Materials Science Classroom at MEE

posted December 2019

St Thomas engineering students in the SEM lab with MEE Engineer, Jason Larson.

MEE Materials Science Engineer, Neal Hanke, with St Thomas students in the MEE inspection lab.

MEE recently played host to engineering students from the University of St Thomas School of Engineering for instructional tours of our laboratories.  The students spent time with members of our engineering staff in our SEM and the Visual Inspection Labs.

We have been providing these mini-classroom opportunities in collaboration with School of Engineering’s faculty member, Dr Genevieve Gagnon, for quite a few years now.  Dr. Gagnon and MEE CEO, Larry Hanke, share a common goal of creating an educational bridge between academia and industry.

Failure Analysis Seminar

posted August 2019

Senior Materials Engineer, Dan Grice, P.E., presented a two day seminar on Fractography and Failure Analysis at the office of one of our industrial customers.  The seminar covered technical information on fracture mechanisms and analysis through characterization of the macroscopic and microscopic fracture features.  Dan’s presentation included multiple case studies to provide a practical understanding of the analytical methods and laboratory tools a materials engineer uses in the failure analysis process.

Fractography and Failure Analysis Seminar

 

 

 

Materials Evaluation and Engineering, Inc.  is pleased to announce that Henry Ahrenholtz has joined our staff as an Associate Engineer. We hired Henry to support MEE’s  busy materials characterization laboratory.  He has rapidly become skilled in nondestructive testing methods, visual examination, metallographic sample preparation, microstructure examination, and mechanical testing. He has already been involved in two large industrial projects assisting senior engineering staff on the job site and in the laboratory.  We are confident that Henry will be a strong asset to the MEE team.

Henry is from Minnetonka Minnesota and attended Iowa State University, graduating in 2018 with a degree in Materials Engineering with a specialization in polymers. When not at work in the Metallography Lab, Henry enjoys rock climbing and cycling.

 

Henry Ahrenholtz

Larry Hanke,P.E. and Neal Hanke, P.E. will be presenting a talk on the role of the metallurgical engineer in fire investigations at an October 12 educational seminar in Lakeville, MN. The seminar is directed at fire investigators, insurance professionals and lawyers to highlight the importance of laboratory testing  of artifacts in a successful investigation.

Larry Hanke, P.E.

Neal Hanke, P.E.

Larry and Neal will provide their expertise on:

  1. A fundamental understanding of how structural and electrical materials behave at elevated temperatures.
  2. How material behaves under stress.
  3. How to evaluate component failures that may contribute to fire and explosion
  4. A better understanding of how to identify electrical arcing
  5. How anomalous material behavior can lead to incorrect conclusions about the conditions during a fire

Last Thursday we hosted thirty high school students at MEE  as part of a week-long Materials Science Camp sponsored by the MN Chapter of ASM International.  Under the direction of  industry and academic based “Materials Mentors”, students learned about the process of running a failure analysis investigation. MEE provided a space for the students to get hands on experience with sample preparation, Rockwell hardness testing, light microscopy and scanning electron microscopy.

 

 

Three of our staff, Larry Hanke, Kurt Schenk and Neal Hanke, were  camp mentors. This was MEE’s twelfth year sponsoring the camp.