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Lubrication: Performance under Pressure

CSEF · 2002 Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Michael A. Johnson · Hillsdale High School, San Mateo

Overview

Objectives/Goals Through my project I wanted to find the lubricantthat would withstand the most amount of pressure and produce the least amount wear on a rod and pipe assembly. Methods/Materials Six steel rods of the same length were fitted into six steel pipes of the corresponding diameter. Each of these rods was with one of the test lubricants. The rod with the lubricant was rotated within the pipe at extreme speeds with a drill. After the lubricant wore off and the drill locked up, the trial was over. Increasing amounts of pressure were then added to each rod and pipe assembly. Results The rod and pipe assembly that was applied with the graphite lubricant was able to be rotated for the longest amount of time without locking up the drill. It also was one of the lubricants that produced the least amount of wear. Conclusions/Discussion Graphite is the best lubricant to use when in a rod and pipe assembly rotating at high speeds and in extreme pressure conditions.

Summary statement

This project is testing various lubricants under different amounts of pressure.

Help received

My father helped me obtain the rod and pipe assembly and he operated the drill.

Competition history

  • CSEF 2002 Applied Mechanics/ Structures & Mechanisms/ Manufacturing · Entry S0212

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