Abstract
A compression-twist type friction testing machine has been developed to establish the fundamental friction testing method for metal forming. This machine has been devised to change easily contact pressure, sliding velocity, sliding distance and combination of friction pairs. Two indenter types, that is, ones with different contact length along sliding direction and a ring-shape-indenter, are employed and several mineral oils are tested using mild steel and alloy tool steel SKD 11 as the friction pairs. Surface appearances of testpiece and tool during sliding are observed by a SEM and a profile projector. The variations of friction coefficient during sliding are understood based on the surface appearance. Thus, new measures to evaluate lubricity in boundary lubrication, oil film strength and antiweldability are proposed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 354-360 |
| Number of pages | 7 |
| Journal | Transactions of the Japan Society of Mechanical Engineers Series C |
| Volume | 52 |
| Issue number | 473 |
| DOIs | |
| State | Published - Jan 1 1986 |
Keywords
- Alloy Tool Steel
- Forming
- Friction Coefficient
- Friction Testing Apparatus
- Mild Steel
- Mineral Oils
- Tribology
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering