No abstract

Tribological problems, in common with most other technological problems, are normally solved by one of two methods—1. By the application of existing knowledge. 2. By a research and development programme. The first method, on grounds of speed and economy, is usually the first to be tried and requires the means of characterizing the friction, wear, or lubrication problem, a broad knowledge of the possible alternative solutions and the necessary experience to identify the most cost effective solution. Where no technically satisfactory solution exists or where the solution is economically unattractive, a more basic approach is necessary. Although it can be said that a change of design can have the greatest influence on tribological problems in many instances constraints on change will only permit materials or lubricant substitution or possibly the application of a surface coating. In these instances the tribological problem becomes one of materials development. Examples of the solution of tribological problems by both methods are presented in this paper. They are taken from work recently carried out or presently in progress at the Fulmer Research Institute.