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Jinhan machinery mould together with you of increasing material manufacturing application in mold in​


In recent years, "additive manufacturing" 3D printing technology has become the focus of technology development and application of the industrial sector to. "Increasing material manufacturing" is in accordance with the hierarchical packing manufacture principle, to simplify the 3D production tasks for multiple two-dimensional production processes (i.e., cross-section manufacturing process) to provide the infinite degree of freedom as design and modeling, thereby creating any component geometry is very complex. The production process of the tool, is reproduced in a very accurate physical model into components with complex geometry. In the copy, regardless of complexity of manufacturing cost and manufacturing time and component.
This kind of "selective laser melting increasing material manufacturing technology has gradually become the mold, automobile and aircraft industry focus on the development and application etc.. In the mold industry, by laser melting technology for the fabrication of components of complex geometry, and other process is very time-consuming or manufacturing, such as in the mould core can set close to the arbitrary contour surface of the cooling channels. In the aircraft industry and automobile manufacturing industry using laser melting technology to manufacture lightweight components. In the tool and the tool industry is used to produce complex structure and tool chuck. MAPAL in 2013 began to laser melting process of development, and concept of laser companies in 2014 the laser melting process in manufacturing insert in cooling twist drill QTd series (Figure 1), a hydraulic expansion chuck and the outer circle of the reamer.

Figure 1 the laser melting process batch manufacturing insert cooling in the cutter body of the twist drill, in concept laser company M1 cusing equipment on the can manufacturing 100-121 knives in a body.
The diameter range of twist drill with cooling chip for 8-12mm. Previous bit internal cooling is generally in the drill core through the central cooling channel, near the bit at the ends of the fork channel through the cooling liquid is conveyed to the cutting edge. Such a central cooling channel, the drill core strength becomes weak, resulting in the processing is not stable. In addition, due to the smaller diameter of the cooling channel, the cooling liquid flow on the cutting edge is less, and the cooling effect is affected. Now made by laser melting process insert cooling twist drill and two cooling passages is parallel to the spiral groove, which improves the stability of the drill core. Here, the cooling channel shape and circular also slightly different, showing a triangular cross-section (Figure 2). This is conducive not only to improve the geometrical moment of inertia, but also help to increase the cooling fluid flow and its flow to 30% higher than that of the circular cooling passages. The triangular cross section of the cooling channel with conventional process is not made out of.

Figure 2 insert cooling twist drill, the cooling channel shape of a triangular cross-section.

Insert new chip cooling twist drill is according to the mixed manufacturing to manufacturing, is by the laser melting process and conventional processes (milling, turning, etc.) combined to create a bit. The handle structure is relatively simple, so the use of conventional machining to manufacture, and on the basis of the handle by laser melting process manufacturing a bit complex, part of the cutter body. Such a hybrid manufacturing can significantly improve the economy in the process of manufacturing.

Figure 3 the laser melting process of the manufacturing of hydraulic expansion chuck slender rod.