What is Retrieval CAPP system?
Retrieval CAPP Systems Retrieval CAPP systems, also known as variant CAPP systems , are based on group technology and parts classification and coding (Section 39.5). In these systems, a standard process plan is stored in computer files for each part code number.
What is the main purpose of CAPP in terms of the design and machine?
Computer-aided process planning (CAPP) is the use of computer technology to aid in the process planning of a part or product, in manufacturing. CAPP is the link between CAD and CAM in that it provides for the planning of the process to be used in producing a designed part.
What are the advantages of generative process planning?
Generative process plans have a number of advantages. Among the major ones are the following : (i) They rely less on group technology code numbers since the process, usually uses decision tree to categorize parts into families. (ii) Maintenance and updating of stored process plans are largely unnecessary.
What are the different types of CAPP?
These are the types of CAPP:
- Generative Computer Aided Process Planning (G CAPP)
- Variant Computer Aided Process Planning (Variant CAPP)
- Retrieval Computer Aided Process Planning (Retrieval CAPP)
Which is better between retrieval and generative CAPP system?
The main difference between retrieval and generative CAPP is. (a) Retrieval CAPP system is based on part family and automated search of route sheet whereas generative CAPP is based on artificial expert that a human planner would use to generate route sheet.
What are the challenges in FMS simulation?
FMS planning and implementation problems can be classified as design, planning, scheduling, control problems. The design problems include obtaining the required number of tools and the various buffers along with required amount the material handling system can handle.
What are the objectives of shop floor control?
Objectives of Shop Floor Control Systems To streamline the operations and reduce production cycle times. To provide real time data related to activities, inventory and resources. To provide accurate updates on machine usage, man hours for each staff member, payroll calculations and timely alerts to potential problems.
What are the advantages of CAPP over manual process planning?
16.11. 4 Benefits of computer-aided process planning
- CAPP can give more complete and detailed process plans.
- Process planning and production lead time is reduced.
- CAPP can give faster response to engineering changes.
- Greater process plan consistency is ensured.
In which way CAPP is beneficial for industry?
CAPP BENEFITS In a detailed survey of twenty-two large and small companies using generative-type CAPP systems, the following estimated cost savings were achieved: 58% reduction in process planning effort. 10% saving in direct labor. 4% saving in material.
What are the differences between retrieval and generative type of computer aided process planning?
What are the differences between retrieval and generative type of computer aided process planning state their merits?
The retrieval CAPP system offers lots of flexibility as one can do lots of editing and changes as per the requirements. In the generative process planning systems new plan is made automatically from scratch for each part using the computers, without involving human assistance.