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Real estate Industry is capital-intensive. Cost management is very important for real estate. Efficient cost management is one of important means that can ensure sustainable development of the real estate business. Now, we must find out the efficient cost management means according to analysis the importance of the real estate and the problem exist in it.

This paper presents a path-planning method of laser tool in 5-axis laser quenching for complicated surface. In this method, two main factors are concerned which include: (1) Planning the CC paths on the complicated surface quenched to maintaining laser tool scanning speed constant easily in quenching process; (2) Diminishing the chord deviation between the actual value and its approximation by choosing different interpolation methods according to the curvature radius of CC points which is being quenched. This method effectively ensures the part’s laser quenching quality.

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