Research On Lean Production Management Improvement Of H Company

With the development of economy in China,the domestic manufacturing industry had made remarkable achievements and development.On the one hand,because of the market demand exceeded supply capability,on the other hand,thanks to the domestic cheap labor cost and mass production model.However,in the 21^st century,with the increasing pursuit of personalized request,the traditional manufacturing industry is facing with an unprecedented attack and challenge.The demand order is no longer stable,but more and more fluctuation and diversity,meanwhile the competition among the enterprises is becoming more and more intense.Under this trend,the ordinary manufacturing enterprise will be eliminated if they could not able to more efficient and more flexible to adapt changes of the market.H company is one of many traditional manufacturing enterprises,which is focus on automotive electronic products.Its good quality,brand influence and professional project management make it win the favor of local OEM customers once entering the Chinese market.The annual sales continue to grow and over 30%in average,and gross margin is kept at a good level.However,with the increase of competitors and consumers’personalized requests,the market changed dramatically,“more variety and low volume”demand surged,but in the face of these changes,H company’s production management was“dull”reaction,the inventory kept increasing,operational cost kept going up,long lead time,low profit or loss.Under this background,the top management of H company began to think about the transformation–how to improve the lean manufacturing management to respond to the market change promptly.Taking the lean management thought as the guiding principle,this thesis analyzes the production management of H company,collects the information and data of production layout mode,production plan management,production efficiency and change over management,draws current VSM,and grasps the current situation of lean production management of H company.Then,combined with the lean production management objectives and current VSM,find out the key improvement points,sort out and analyze the data,"see the essence through the phenomenon"to find the problems behind the appearance and the causes of the problems.Then use the tools and methods of lean production and continuous improvement to put forward corresponding improvement schemes,such as improving SMT line balance and change over efficiency to improve production efficiency;Adopt U-shaped production layout to shorten SMT production lead time and reduce SMT WIP inventory;Kanban pull production is used to replace the existing push production to reduce inventory obsolescence;Develop automatic assembly and testing equipment that can meet the needs of multiple products,and improve the utilization rate of assembly equipment and output per unit area.Finally,formulate a series of safeguard measures,such as the support of senior leaders,the establishment of corporate culture,the improvement of assessment mechanism and training system,to"escort"the effective implementation of the improvement scheme.The research results of this thesis can also be applied to other auto manufacturing companies and electronic manufacturing companies.