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发明公开
CN107848032A 利用预热的增材制造 无效 - 撤回

利用预热的增材制造
摘要：
一种增材制造的方法包括：在工作台上方以层形式分配供给材料之前，使所述供给材料的温度升高至第一温度，所述第一温度高于室温且低于使所述供给材料变得发粘的第二温度；在所述工作台上方以层形式分配处于所述第一温度下的所述供给材料；在所述工作台上方分配所述供给材料之后，使实质整个供给材料层的温度升高至第三温度，所述第三温度大于所述第一温度且低于使所述供给材料熔融的第四温度；和使所述供给材料层的部分的温度选择性地升高至第五温度，所述第五温度等于或大于所述第四温度。
摘要（英）：

A method of additive manufacturing includes, before dispensing a feed material in a layer over platen, raising a temperature of the feed material to a first temperature that is above room temperatureand below a second temperature at which the feed material becomes tacky, dispensing the feed material at the first temperature in a layer over the platen, after dispensing the feed material over the platen, raising the temperature of substantially all of the layer of feed material to a third temperature that is greater than the first temperature but below a fourth temperature at which the feed material fuses, and selectively raising the temperature of portions of the layer of feed material to a fifth temperature that is equal or greater than the fourth temperature.

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