The layout of a plant or facility is concerned with the physical placement of resources such as equipment and storage facilities, which should be designed to facilitate the efficient flow of customers or materials through the manufacturing or service system. The layout design is very important and should be taken very seriously as it can have a significant impact on the cost and efficiency of an operation and can involve substantial investment in time and money. The decisions taken with regards to the facility layout will have a direct influence on how efficiently workers will be able to carry out their jobs, how much and how fast goods can be produced, how difficult it is to automate a system, and how the system in place would be able to respond to any changes with regards to product or service design, product mix, or demand volume. In many operations the installation Continue reading
Production Management
Preventive Maintenance
Preventive maintenance anticipates failures and adopts necessary actions to check failures before they occur. It includes activities like inspection, lubrication, cleaning unkeeps, minor adjustments and replacements found necessary at the time of inspection etc. Its purpose is to minimize breakdowns and excessive depreciation. Neither equipment nor facilities should be allowed to go to the breaking point. In its simplest form, preventive maintenance can be compared to the service schedule for an automobile. Preventive maintenance can be either: running maintenance or “shut down maintenance”. Running maintenance includes maintenance activities e.g. minor adjustments in machines revealed through inspections, lubrication, cleaning and upkeep etc., which are carried out when the machine is still running. Shutdown maintenance includes preventive maintenance activities such as minor component replacement whose needs are identified through inspections, which require stoppage of machines. Preventive inspection is one of the key activities of preventive maintenance which is usually performed by Continue reading
Tool Control in Production Management
Meaning of Tool Control Tool control in production management implies (1) determining tool requirements (2) procuring necessary tools and (3) controlling/maintaining tools once they have been procured. A tool or process planner must calculate tool requirements prior to the time of production to ensure that proper tools will be available when needed. Lost time resulting from incomplete tools planning can be expensive as well as causing work to delay. In order to facilitate tool control and to limit the investment in tool inventory, it is important to standardize wherever possible all the tools within an organisation. Need for Tool Control It is very important to ensure: Against loss through theft or negligence and production delays through misplacement or non-availability of tools. That the investment in tool inventories is minimized consistent with proper tool availability. Tool Control Procedure Two methods are commonly used to control the issue and receipt of tools Continue reading
Role of the Warehouse in Postponement Strategies
The rapid changes occurring in customer-supplier relationship has resulted in shortening the product life cycle along with the product variations, which could meet the complex customer satisfaction demands. As the customer requirements changes rapidly, it increases the complexity of planning and demand forecasting to suit the changing demands. Hence, postponement strategies are able to help in solving such complex issues. The strategy involves delay in the production process to the maximum possible time, while delaying the point of product differentiation. As the whole strategy is related to the value of information, it can be maximized with delay in production decision time, giving more time to receive and analyze the customer requirement and demand. Hence, the postponement strategies help in improving the quality of decision, while also optimizing the quality of product planning and demand forecast. The relevant strategy also allows for the flexibility in the production scheduling, where the actual Continue reading
Routing in Production Management
Meaning of Routing Routing lays down the flow of work in the plant. It determines what work is to be done and where and how it will be done. Taking from raw material to the finished product, routing decides the path and sequence of operations to be performed on the job from one machine to another. The purpose of Routing is to establish the optimum sequence of operations. Routing in production management is related to considerations of layout, temporary storage of in-process inventory and material handling. Routing in continuous industries does not present any problem because of the product type of layout, where the equipment is laid as per the sequence of operations required to be performed on the components (from raw material to the finished products). In open job shops, since, every time the job is new, though operation sheets (sometimes) may serve the purpose, but the route sheets Continue reading
Continuous Manufacturing Systems
In continuous manufacturing systems the items are produced for the stocks and not for specific orders. Before planning manufacturing to stock, a sales forecast is made to estimate likely demand of the product and a master schedule is prepared to adjust the sales forecast according to past orders and level of inventory. Here the inputs are standardized and a standard set of processes and sequence of processes can be adopted. Due to this routing and scheduling for the whole process can be standardized. After setting of master production schedule, a detailed planning is carried on. Basic manufacturing information and bills of material are recorded. Information for machine load charts, equipment, personnel and material needs is tabulated. In continuous manufacturing systems each production run manufactures in large lot sizes and the production process is carried on in a definite sequence of operations in a pre-determined order. In process storage is not Continue reading