Lean Manufacturing System
Lean manufacturing is based on the production system s i for the first time in the 1950s engineer Toyoda Eiji Toyoda and his family worked together as colleagues engineers under the leadership of Taiichi Ohno, Toyota was laid in the Japanese firm . According to the definition of John Krafchik , a former Toyota employee, Lean Manufacturing; It is an ideal production system that does not contain any unnecessary elements in its structure and in which elements such as error, cost, stock, labor, development process, production area, wastage, customer dissatisfaction are minimized.
Lean production main purpose of the service, and all the values produced , may be formed from the maximum yield and avoiding waste . H trace which increased t ırıp quality by reducing the flow time, cost performance as a combination of improvements y and aims to zero defect production . It aims to avoid 7 basic wastes that may occur in a production line , these are; faulty production, unnecessarily over-production, equipment, employees held more than is needed no matter the product or raw material inventory, waiting time, Business and customer benefits while providing unnecessary work, unnecessary transport and caused the business environment in inefficient use of unnecessary movements.
In Lean Manufacturing, some techniques are used to reach the targeted production system . Let's examine some of these techniques together;
Just In Time: Stocks hold a minimum level , the maximum efficiency of the equipment used mai n and the product produced on time with zero defects to be presented it provides .
Kaizen: It is one of the main elements of the lean production philosophy. It manages continuous improvement activities covering all functions of the business . While applying Kaizen, goals such as facilitating the work, increasing productivity, increasing quality, saving time/way/cost are determined in the first place, and all these improvements are implemented step by step, each time exceeding the previous one. With each new standard, better solutions are sought. The improvement plan proceeds with the cycle of "Plan - Do - Check - Take Action" and when this plan is finalized, it is put into practice. If the result is successful, the application is completed.
Kanban: Through this mechanism " third planting " type production , the other operates need to reach parts , require ul node of time and the amount is directly transferred to the next operation .
5S : Original in Japanese, Turkish, " Extract, edit, Cleanliness, Standardization, Sustaining and Development " as consisting of step 5, i the enterprise 's efficiency spindles to increase in behalf; It is a workplace organization method that provides maximum benefit from materials and labor and eliminates the dirty, unorganized and messy working environment that gradually reduces efficiency.
Poka-Yoke : Lack of concentration, inexperience, forgetfulness, carelessness, misunderstanding, etc., caused by the human factor. It aims at zero defect production by developing tools and strategies to prevent errors that arise due to situations. Its main purpose is control and warning; The main functions are to turn off or stop. Templates, guides, sensors, light alerts, etc. consists of hardware, it warns the user in order to prevent a possible error / negativity. For example, you cannot get the money without getting the card from the ATM, it eliminates the possibility of forgetting.