Application of reverse engineering approach on a damaged mechanical part

Abstract

Reverse engineering methods are important for remodeling or measuring damaged or non-damaged parts. Reverse engineering also enables the design of complex components, reducing actual product production time and prototype production time. With this method, damaged gear wheels can be modeled in a short time due to the regular geometry and symmetrical properties of the teeth and it is real models can be produced. In this study, the damaged motor cam gear was scanned with a three dimensional (3D) scanner and a mesh model was formed. Then, solid model of part was created and genuine prototype was produced with 3D printer. The deviations of geometric dimensions between the mesh model and the solid model were analyzed and the levels of convergence were determined. The three-dimensional prototyping method provides great convenience for the designer due to it gives quick feedback in product development process. At the end of the study, geometric values between solid model and prototype model were compared and deviations from actual value were determined.

Reverse engineering of geometric design parameters using shape information of non‐standard spur gear

“…ISO6336-3 assumes a cantilever beam and includes the main factors affecting the stress of gears. The following formulas (10) and (11) show the bending stress presented in ISO6336-3.…”

“…This complexity makes finding gear design parameters a very difficult requirement [7][8][9]. Previous research on gear reverse engineering utilized 3D scanning, scanning and rapid prototyping, and machine learning to extract the gear geometry of powertrains such as automatic transmission systems, damaged motor cam gears, and gear wheels, and compared them with the original products [10][11][12][13]. In most of these previous studies, it is difficult to extract the geometrical design parameters as they proceed from the measurement of the diameter of the root and the tip of the tooth to the tracking of the tooth profile.…”

Using photogrammetric modeling in reverse engineering applications: Damaged turbocharger example

“…Reverse engineering is utilized in engineering, medical sciences, restoration processes for the conservation of cultural heritage, automotive industry, shipbuilding industry etc. (Yılmaz et al 2000;Verim and Yumurtacı 2020;Dúbravcík and Kender 2012;Deja et al 2019).…”

“…When mechanical engineering applications are taken into consideration, the essential aim of the reverse engineering is to generate a 3D parametric solid model, which is the most appropriate to the original of the object, by utilizing raw data received from a 3D scanner (Verim and Yumurtacı 2020). Shape engineering, placed at the interface of mechanical engineering, modern geometry, computer science, and statistics, is concerned with the study of mechanical parts and assemblies' geometric properties (Anwer and Mathieu 2016).…”

Investigation of plastic zone dimension in front of an external semi-elliptic crack on pipe of molecular bushing

“…The plastic zone (PZ) size in the region near the tip of a propagating crack is considered as a measure of the material resistance against crack surfaces opening [4]. The larger plastic zone size results in the higher plastic energy absorption and the higher toughness [5,6].…”