Adrian Piedra

Mentor: Dr. Hitomi Greenslet
College of Engineering
"For the first year and a half of my studies, I focused on the academic aspect of my collegiate experience. This was beneficial to me because I was able to feel competent and successful with my academic abilities. However, I recognized the unfortunate gap between real-world problems and my academic knowledge. Since then, I have started to bridge this gap by joining the Center for Manufacturing Innovation, where I conduct research on cutting-edge manufacturing processes under the supervision of Dr. Hitomi Greenslet. Through my research, I hope to make these processes more available to the public."


Mechanical Engineering



Research Interests

  • Manufacturing
  • Solid mechanics
  • Mechanical design

Academic Awards

  • Anderson Scholars Award of Highest Distinction, 2014
  • The Boeing Company Scholarship, 2014
  • Association of Cuban Engineers Scholarship, 2014, 2015
  • Engineering Multicultural Scholarship, 2015


  • N/A


  • University of Florida Student Science Training Program

Hobbies and Interests

  • Tennis
  • Traveling
  • Music
  • Snorkeling

Research Description

Needle Tapering for Improved Biopsy Performance
A finely finished internal needle surface is suggested to prevent damage to biopsy samples and decrease pain for patients by reducing the forces generated during needle insertion and extraction. In addition to a finely finished surface, a tapered needle profile is expected to facilitate the suction movement of a biopsy sample. The proposed research project will focus on the use of magnetic abrasive finishing (MAF) to generate a tapered profile on the internal and external surfaces of 18 gauge 316 stainless steel needles commonly used for breast cancer biopsies. In the past, these needles have been finished using MAF to generate internal surface geometries that are 20 times smoother than unfinished geometries. Using MAF, the taper can be manufactured by controlling the needle wall thickness removed with the feed rate, finished length, and amount of finishing passes in the experimental conditions.