June 15, 2019
June 15, 2019
June 19, 2019
Abstract Motivating, and promoting interest in engineering subjects is sometimes a challenge specialty to freshman and sophomore students. This paper is my effort, as a sophomore in college, to share what I have experienced during recent work/internship experience. It has the potential of introducing interested individuals to the progression of thought that I have gone through as I seek and settle on acceptable results from the work I do. Prior to this work experience I mainly had thoughts of becoming an accountant. However through this project based learning I found my real passion.
The internship/ work study which was undertaken presents a project based learning based on industry experience and an academic degree earning pursuit. The application of laser markings on manufactured items is a necessary and sometimes challenging task. In the medical device industry, implants will soon be required to not only include human readable text as part of their identification markings, but also a Unique Device Identification (UDI) barcode that contains information on the manufacturer/distributor, part number, and lot number. These strings of text and code can, of necessity, become very small. The mere function of applying a mark to a product has application in multiple engineering disciplines such as Electrical, Mechanical, and Manufacturing Engineering. Applying these markings, whether by laser or some other means, must be done with care and precision, because the marked items may be used in a growing worldwide marketplace.
I have since taught others in the performance and details of this task, but in doing so have awakened a desire within myself to reach even higher, and to learn so much more about engineering. My apologies to accountants, but learning how to create, build, design, and provide objects and services that could help humankind all the world over has taken over the desire of old to crunch numbers and learn about tax codes. My degree choice has changed to Electrical Engineering, specifically, because I had to decide on one field officially. The desire to be proficient in Mechanical and Manufacturing engineering is strong as well, though. This new drive for learning has placed me on a path that I am still walking on. Though it extends far ahead of me, I am excited to see the many places that this path will take me.
This document will address some of the challenges encountered during the laser marking process and will explore some potential solutions to those challenges. Adjustments can be made to power levels, scanning speed, vertical location of the focal point, pulse frequency, and point/line separation. Varying those factors in thoughtful steps and planned combinations affect will directly affect the quality of the markings. The medical device industry deals greatly with stainless steel, titanium, and Polyether ether ketone (PEEK). Each material has different marking needs, and therefore different parameter settings. Discussion and analysis of how adjustments to these parameters affect the quality, sharpness, and even color of the resulting mark is the main purpose of this document. Conclusions will be made as to what generally constitutes an acceptable and legible string of text or barcode, and why achieving a repeatable and reliable mark is so important.
To accomplish this objective for a sophomore student with interest in this area, it has been arranged for an internship in a local company which does laser work and has the appropriate laser equipment. Additionally, the student was provided the necessary technical background and material within the engineering, physical sciences and mathematics departments to do his project. The engineering student, by taking the necessary courses, as well as getting practical experience at the internship within the industry, was able to go through the project and learn while having fun doing what he enjoys. The engineering student is now motivated to continue in this field and train other interested individuals in this subject.
Carbine, A., & Safai, N. (2019, June), Board 88: A Sophomore’s Interdisciplinary Engineering Project Enhancing Learning and Engineering Education with International Applications and Markets Abroad (Student Poster) Paper presented at 2019 ASEE Annual Conference & Exposition , Tampa, Florida. 10.18260/1-2--32450
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