The Effect of Parameter Process 3D Printer Technology Digital Light Processing to Geometric of Shaft

Int J Adv Manuf Technol

Wu²

2023

Highlights1. Comprehensively evaluated the performance of a low-cost spring-assisted mechanism for the separation process.2. The Taguchi method was used to obtain the parameters that minimize the separation force and time.3. The spring-assisted mechanism demonstrated better manufacturing stability than the pulling-up or tilting mechanism. 4. A linear regression equation was established to predict the separation force of specific geometric shapes and areas to greatly reduce the calculation costs and time.

Section: Discussionmentioning

confidence: 99%

Comprehensive performance of a low-cost spring-assisted mechanism for digital light processing

Int J Adv Manuf Technol

Wu²

2023

Comprehensive performance of a low-cost spring-assisted mechanism for digital light processing

Wu²

2022

Preprint

In the field of additive layer manufacturing, constrained-surface digital light processing has attracted considerable attention due to its high precision and low material loss. During the process of separating the cured layer from the resin tank, the high separation force generated by the pulling-up mechanism increases the printing failure rate and reduces the life cycle of the resin tank. Although changing the separation mechanism can significantly reduce the separation force, this often has the tradeoff of high equipment costs. This study comprehensively evaluated the performance of a low-cost spring-assisted mechanism for the separation process. The Taguchi method was used to confirm the variability of the spring-assisted mechanism and obtain the parameters that minimize the separation force and time. The spring-assisted mechanism was then applied to printing different geometric shapes and areas, and the results demonstrated better manufacturing stability than the pulling-up or tilting mechanism. A linear regression equation was established to predict the separation force of specific geometric shapes and areas to greatly reduce the calculation costs and time.

Optimizing Manufacturing Parameters of DLP Machine by Taguchi Method and Desirability Approach

2022

Machines

With less manufacturing time and less photosensitive resin consumed, Digital Light Processing of the bottom-up process is more forward-looking than the top-down one in terms of 3D printing technology. In view of differences in the optimization of machine printing parameters for objectives with different quality requirements, this paper discusses how the control factors consisting of machine printing parameters can obtain objects with a high quality through an experimental design with full considerations of the separation force and dimensional tolerance. By taking the titling separation mechanism as an example, the importance, contribution, and best calculation results of the control factors in forming a separation force and four dimensional tolerances are obtained using the Taguchi method and an analysis of variance, and then the optimal solution for multiple objectives is obtained via the desirability approach. It was found from this study that the rising speed of the forming platform is the most important parameter affecting the dimensional tolerance and separation force. The slice layer thickness has an inverse characteristic for optimizing the dimensional tolerance of the aperture and the face width. Regarding multi-objective optimization, it will not change the optimal printing parameters considering the minimum separation force and overall dimensional tolerance, regardless of the weight of the separation force.