There usually exist narrow-long-deep areas in mould needed to be machined in special machining. To identify the narrow-deep areas automatically, an automatic narrow-deep feature (NF) recognition method is put forward accordingly. First, the narrow-deep feature is defined innovatively in this field and then feature hint is extracted from the mould by the characteristics of narrow-deep feature. Second, the elementary constituent faces (ECF) of a feature are found on the basis of the feature hint. By means of extending and clipping the ECF, the feature faces are obtained incrementally by geometric reasoning. As a result, basic narrow-deep features (BNF) related are combined heuristically. The proposed NF recognition method provides an intelligent connection between CAD and CAPP for machining narrow-deep areas in mould.
机构:
Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R ChinaHong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
Ran, J. Q.
;
Fu, M. W.
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机构:
Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R ChinaHong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
机构:
Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R ChinaHong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
Ran, J. Q.
;
Fu, M. W.
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R ChinaHong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China