In the first half of the year, China's lighting industry exports increased by 14

The reporter learned from the Guangzhou International Lighting Festival that in the first half of the year, China's lighting and electrical industry continued to maintain a steady growth momentum. According to the statistics of the import and export statistics of the General Administration of Customs, the export volume of the whole industry reached 17.9 billion yuan in the first half of this year, compared with the first half of 2013. The 15.7 billion yuan, an increase of 14.06. Behind the broad development prospects is a shortage of supply and demand. According to the data provided by the National Industrial Census, the number of lighting electrical enterprises in China is 8,792, and the number of employees in the industry exceeds 1 million. The gap between professional lighting engineering companies and enterprises for professional lighting designers is at least 15,000. Information on the search for lighting designers for millions of annual salary is also frequent. The data also shows that 43.9 professionals engaged in the lighting industry believe that domestic lighting designers have a significant gap in terms of income, social status, and technical level compared with foreign countries.

CNC Milling

CNC Milling is to use the rotating multitool to cut workpieces, such processing method is efficient. Tool rotate (background) while working, and the workpieces move (as a feed movement), workpieces can also be fixed, but at the moment, rotate tool must also move (at the same time to complete the main motion and feed motion).Milling machine has a horizontal milling machine or vertical milling machine, large gantry milling machine.The machine tool can be ordinary machine tool, can also be a nc machine tools. With rotating cutter as a cutting tool.Milling is generally conducted on milling and boring machine, suitable for processing plane, groove, all kinds of forming surface (such as spline gear and thread) and special shape mould surface, etc
The characteristic of the CNC Milling is:
(1) cutter blade periodically participate in continuous cutting.
(2) each blade in the process of cutting, cutting thickness is variable.
(3) each tooth feeding alpha f (mm/teeth), said cutter every turn a blade workpieces relative displacement of time.

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