本研究旨在改善多雷射頁寬式高速列印技術的預熱方式，有別於其他單點掃描式的雷射燒結 3D 列印設備，大多將預熱熱源安裝在列印槽體上方，頁寬式雷射模組在X軸載台上新增預熱熱源，透過移動式預熱的方式進行粉末預熱，在單次行程內同時達到舖粉、預熱以及雷射燒結，減少等待粉末預熱的時間，縮短列印流程，藉此達到高速列印的目的。
本研究將先前頁寬式雷射列印機的持溫設備進行改良，達到大範圍的照射面積，確保粉末不會因雷射燒結前後溫差過大而產生翹曲，並於X軸載台上安裝預熱熱源，使粉末快速抵達預熱溫度，加速列印流程，同時加裝溫控模組，隨時監控粉末的溫度，並確保設備運作正常。
完成預熱設備相關的所有改良之後，使用自製TPU粉末進行列印測試，比較不同預熱方式對於列印成品的影響，檢測其機械性質並以SEM觀察粉末燒結情況，達到移動式預熱燈對於高速積層製造效果，並提升TPU拉伸試片的機械性質。

This research improves the preheating method of multi-laser page width high-speed printing technology. Different from other single-point scanning laser sintering 3D printing equipment, most of the preheating heat sources are installed above the printing tank. The page-width laser module adds a preheating heat source on the X-axis stage, and preheats the powder by means of mobile preheating, which can simultaneously achieve powder coating, preheating and laser sintering in a single stroke, reducing waiting The powder preheating time shortens the printing process, thereby achieving the purpose of high-speed printing.
In this study, the temperature holding equipment of the previous page-width laser printer was improved to achieve a wide range of irradiation area to ensure that the powder will not be warped due to the excessive temperature difference before and after laser sintering, and installed on the X-axis stage Preheat the heat source to make the powder reach the preheating temperature quickly and speed up the printing process. Simultaneously, a temperature control module was installed to monitor the temperature of the powder at any time and ensure the normal operation of the equipment.
After completing all the improvements related to the preheating equipment, the self-made TPU powder was printing test, compared the influence of different preheating methods in the printed product, examined its mechanical properties and observe the powder agglomeration with SEM and created a mobile preheating lamp. For high-speed lamination manufacturing effect, and improve the mechanical properties of TPU stretched sheet.

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