국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Effects of Hydrocarbon-Based Grease on Rapid Prototype Material Used for Grease Retention Shrouds
저자	Zakrajsek, Andrew J.;; Valco, Daniel J.;; Street, Kenneth W., Jr.
Keyword	FOURIER TRANSFORMATION;; GREASES;; HYDROCARBONS;; IMAGING TECHNIQUES;; INFRARED SPECTROSCOPY;; LUBRICATION;; POLYAMIDE RESINS;; PROFILOMETERS;; RAPID PROTOTYPING;; SHROUDS;; SOLVENTS;; STYRENES;; THICKNESS
URL	http://hdl.handle.net/2060/20110003049
보고서번호	NASA/TM-2010-216896
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Effects of hydrocarbon-based greases on specific rapid prototype (RP) materials used to fabricate grease retention shrouds (GRS) were explored in this study. Grease retention shrouds are being considered as a way to maintain adequate grease lubrication at the gear mesh in a prototype research transmission system. Due to their design and manufacturing flexibility, rapid prototype materials were chosen for the grease retention shrouds. In order to gain a better understanding of the short and long term effects grease pose on RP materials, research was conducted on the interaction of hydrocarbon-based grease with RP materials. The materials used in this study were durable polyamide (nylon), acrylonitrile butadiene styrene (ABS), and WaterClear 10120. Testing was conducted using Mobilgrease 28 and Syn-Tech 3913G grease (gear coupling grease). These greases were selected due to their regular use with mechanical components. To investigate the effect that grease has on RP materials, the following methods were used to obtain qualitative and quantitative data: Fourier transform infrared spectroscopy (FT-IR), interference profilometer measurements, digital camera imaging, physical shape measurement, and visual observations. To record the changes in the RP materials due to contact with the grease, data was taken before and after the grease application. Results showed that the WaterClear 10120 RP material provided the best resistance to grease penetration as compared to nylon and ABS RP materials. The manufacturing process, and thus resulting surface conditions of the RP material, played a key role in the grease penetration properties and resilience of these materials.