The manufacturing assembly line was first introduced by Henry Ford in the early 1900’s. It was designed to be an efficient, highly productive way of manufacturing a particular product. The workstation is considered to be any point on the assembly line in which a task is performed on the product. The time required to complete the task at each operation …show more content…
There are three basic types of the assembly line problems:
1. Single Model Line
One product is produced in large quantities. All workstations have to perform the same tasks on the identical units repeatedly. The work load over all stations remain constant all the time.
2. Mixed Model Line
Different versions are manufactured from the basic product on the same production line, for example different models from the mobile phone. But there is one condition for this type which is all models should have the same production processes. Because the models differ from the basic product with respect to some attributes such as the RAMs, Processors and Memory. In addition to some optional features like camera, screen size. It’s obvious that the basic operations are required to manufacture each model. So we will have some operations have different times, depending on the optional part being installed or not. Because of the same production processes applied, no or only minor setup activities will be required when changing from model to another. In order to meet the customers demand, the models are manufactured simultaneously on the line on intermixed …show more content…
Multi model Line
The same products are produced on one or several production assembly lines. Due to the considerable difference in production processes, reorder of the lines equipments are required when change from product to another. So the products are assembled in separate batches to reduce the setup time. While the setup costs are decreased by increasing the batch size, the inventory costs are increased. This trade off will lead to a problem of determining the economic lot size and the production cycles of all products. At the same time, the product batches have to be scheduled on the production