# Methodology for Verification of Geometrically Complex Components Through Reverse Engineering
## 2 Materials and Methods
### Factors Influencing Geometric Accuracy and Quality
\begin{table}
\begin{tabular}{l l} \hline \hline \multicolumn{1}{c}{**Category**} & \multicolumn{1}{c}{**Key Factors**} \\ \hline Geometric and dimensional requirements & Shape determination (simple/complex), dimensional parameters (length, width, height, diameter) \\ Material of the welded part/fixture & Material type: steel, aluminum, stainless steel, etc. \\ Type of welding & Welding method: MIG/MAG, TIG, robotic, other types of welding \\ Type of weld & Joint type: corner, butt, spot, straight, etc. \\ Functional requirements & Welding position: horizontal, vertical \\ Orientation and fixation & Workpiece fixation method, stability, and alignment during welding \\  & (clamps, stops) \\ Technical parameters & Positioning accuracy: how precisely the part must be placed in the fixtureFixture \\ Safety assurance & adjustability: flexibility for different types of parts \\ Fixture geometry tolerance & Protection against scratches and damage to the workpiece (rubber, covers) \\ Fixture repeatability & Tolerance definition for geometric shapes of the fixture, such as flatness, \\ Fixture dimensional tolerance & perpendicularity, and parallelism of fixture elements \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Comprehensive view of the design factors of the welding fixture. secured within the fixture using various clamping elements, such as mechanical clamps, toggle clamps, and stops, which keep the individual components in the required position throughout the entire welding operation. This fixture is equipped with a rotary mechanism that allows rotation around its axis, providing flexibility for welding from different angles. Rotational functionality eliminates the need for repositioning and excessive handling, thereby increasing the efficiency and accuracy of the welding process. The fixture's structure was built using various types of profiles and sheet metal components, which were processed using laser cutting technology. This method ensures high precision and machining quality, which is essential for achieving the required technical parameters and geometric accuracy of the components. To guarantee the precise positioning of individual fixture elements, locks integrated into the base plate were implemented. These locks enable consistent and repeatable positioning, eliminating potential assembly errors. The design also included engraving (mechanical marking), which serves to identify positions or key reference points, facilitating easier orientation during fixture assembly and improving the overall efficiency of the work process. The combination of locks and engravings ensured high positioning accuracy while minimizing assembly deviations. For certain fastened components, such as clamps, a mechanical joint method was chosen. This approach was selected to minimize the risk of deformations that could occur during the welding process while also allowing for easy disassembly in case of a mechanism failure. The use of bolted joints enables simple replacement or repair of damaged parts without requiring complex technological interventions. Finally, casters were mounted on the bottom section of the fixture, facilitating easier movement and handling during transportation.