SPEP-NC information offers new possibilities for object-oriented data management. A strong need for high information content and the increasing object-oriented CAM software requires a new information level for preparation and execution tasks in part manufacturing. This paper describes applications of different intelligent methods especially to support distributed technological data management. The problem of current technological databases will be solved with the help of agent technology and machine learning for distributed information on the shop floor and in planning departments. The authors introduce a combination of agent-based organization and selflearning of feature-based technological information. The prototype includes three components for coordination, data acquisition and preprocessing of technological information to assist human engineers in planning and manufacturing.
Chromium plating is used widely in industry to enhance wear, abrasion resistance and to restore the dimensions of undersized parts. However, tensile residual stress always exists in chrome layer because of hydrogen embrittlement so it affect to mechanical properties of the chromium plating machine element, especially in fatigue strength. In this paper, effect of residual stress in chrome plating layer to fatigue strength was studied. The sample (AISI 1045 steel) was plated with 10 and 60 micrometers thicknesses and residual stress in chrome plating layer was determined by X-ray diffraction technique (Cu-Kα radiation). The results showed that chromium layer thicknesses go up, tensile residual stress decrease and microcrack density increase. Consequently, fatigue strength goes down when chromium layer thicknesses increase.
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