Assembly lines are among the most critical stages of industrial manufacturing. They are typically divided into different sections, each tailored to assemble a specific part of the final product. For example, in automobile manufacturing, one section builds the body while another mounts the doors. These sections are often equipped with high-tech devices such as robots, automatic screwdrivers, and other specialized equipment. Assembly lines also include quality control steps, which are vital to delivering reliable, high-quality products to customers.
Assembly lines consist of conveyor systems or fixed assembly stations designed to put parts together and obtain the final product. Unfortunately, not every stage of the production process can be handled by automation systems, so human labor is frequently required.
In this article, we discuss manual assembly lines—where automation cannot be applied and operations are carried out under human control.
Manual assembly is a widely used method in industrial production. It is preferred for highly customized products or low production volumes. Manual assembly is typically performed by a team that uses assembly benches and tools instead of automated lines to put products together. These manual processes contribute to quality control and can be customized to meet customer needs.
Manual assembly offers advantages such as suitability for customized products, lower labor costs, and flexibility in the production process. However, it also brings many disadvantages. Compared to automatic lines, manual assembly is slower and more prone to errors caused by operator fatigue or inattention. It also requires more labor to increase production capacity.
If we list the problems encountered in manual assembly lines:
- Labor efficiency: Manual lines depend on human labor. Errors due to fatigue or other reasons affect production speed and quality.
- Quality control issues: Since quality control depends on the human factor, it is highly error-prone. Every control step must be meticulously followed.
- Material management: Misplacing materials, mixing up assembly order, or incomplete assembly negatively affects production speed and quality.
- Insufficient capacity: In some cases, manual lines may be inadequate in terms of labor or equipment capacity, reducing throughput and increasing costs.
- Lack of flexibility: Manual lines may not be easily reconfigured for changing customer demands or different product models. Greater flexibility is often needed in production planning and workforce management.
With its state-of-the-art machine vision equipment, TETAVIS supports you across all industrial production processes. Using the TETAMON Assembly Assistant—developed to transform manual assembly lines into an automated system—it digitalizes your manual assembly operations.
The TETAMON Assembly Assistant describes assembly steps to your operator with visuals and breaks the product assembly process into sub-steps. At each step, it inspects predefined points using advanced vision algorithms. While checking whether the requirements of the current sub-step are fulfilled, it also enforces the predefined sequence you specified.
It does not allow advancing to the next sub-step until all requirements are met. In this way, it controls multiple assembly steps in order and guides the operator, ensuring the product assembly is completed without errors. In addition, the TETAMON Assembly Assistant records, on a daily, weekly, monthly, and yearly basis, which operator completed (or failed to complete) which step of which job package and in how much time. This information provides valuable decision support for managing your personnel’s performance. In your continuous improvement efforts, it will help identify bottlenecks in assembly scenarios and support you with recommendations—such as changing the assembly method, differentiating steps, or reordering them.
