Correct Answer - Option 4 : Q only
Explanation:
Generative process planning may be defined as a system that synthesizes process information in order to create a process plan for a new component automatically.
Process plans are created from information available in a manufacturing database with little or no human intervention.
- Upon receiving the design model, the system can generate the sequence of the required operations for the component.
- Knowledge of manufacturing must be captured and encoded into efficient software.
- By applying decision logic, a process planner’s decision-making process can be imitated.
- Other planning functions, such as machine selection, tool selection, process optimization, and so on, can also be automated using generative planning techniques.
- Decisions on process selection, process sequencing, and so on, are all made by the system.
- However, transforming component data and decision rules into a computer-readable format is still a major obstacle to be overcome before generative planning systems become operational.
Production Flow analysis:
- Production flow analysis is a method for forming part families and machine groups by analyzing the production process data listed in the route sheets of parts produced in a factory.
- It groups together the parts having similar operation sequences.
- This method requires reliable and well-documented route sheets.
Production flow analysis is done in four stages
Factory flow analysis:
- In this stage, flows due to parts that repeatedly move to and from between shops are eliminated by a minor redeployment of equipment.
Group analysis:
- In this stage, the flow in each of the shops identified by factory flow analysis is analyzed. Since the number of machines in the shop is larger than the number of shops in a factory, a greater variety of flow patterns can be expected. Group analysis considers the flow interactions among the machines due to the operation sequence of the parts in order to identify manufacturing shells. With the group analysis, there is a significant reduction in material flows within the shop.
Line analysis:
- In this stage, a layout is designed for the equipment assigned to a particular cell. Line analysis considers the operating frequencies and sequences of the parts and plans a cell layout that allows efficient transport to reduce travel times.
Tooling analysis:
- Tooling analysis deals with the cell scheduling problem for parts with similar operation sequences, tooling, setup, and inspection requirements on the machines in the cell. It aims to sequence the parts on each machine tool and to schedule all the parts in the cell such that the throughput times of the parts and machine idle times caused by the transportation of parts and setup changes on the machines are minimized.
Group Technology:
- Group technology (GT ) is a concept to increase production efficiency by grouping various parts and products with similar designs and production processes.
- Similarities among parts permit them to be classified into part families.
- In each part family, processing steps should be of a similar type.
- The improvement is typically achieved by organizing the production facilities into Manufacturing cells, that specialize in the production of certain part families.
- Grouping the production equipment into machine cells where each cell specializes in the production of a part family is called cellular manufacturing.
Hence cellular layout is followed to achieve advantages of Group Technology.
