Researching Of Bottle-neck Process In Material Control

1.TASK It is coming to material management runs through all course of production and management. Material management is an important part of the enterprise management. Arranging the bottle-neck working procedure properly shows the ability of one company. How to combine the bottle-neck process, material stock and cost control properly, striving for digging potential in maximum, this is a problem we need to research urgently. This discourse is a tutorial for the actual manufacture on the basis of the equipments of big parts processing workshop, with many processing experiences, statistical actual processing time, analying the processing ability of elevated sprocket bulldozer parts.In our country mass corporation materiel manage is localization for storage manage in substance. It is enough of production,technology,expend. In manufacture project standard species of material is various. And in materiel, storage, a great deal work depend on handwork, this necessity result in efficiency. For insuring production put up, sometimes increasing stocks, then bring to storage costs increasing. So improving material mange in my manufacturing rather is realism purport. But for west developed country advanced manage is veyy hand coping on accoupt of the situation of a country, for our country, Studing material manage is especially imminence and need. Along with development of the seven seas esconomy, The competition of corporation increasingly fury, Corporation is faced with shortening delivery time,bring up production quality, receling cost and mending ministraut. Now, low price is mostly means of our project competitory, lowliness is a preponderant of competition,passing reducing resource and advancing productivity rate,.It is depress cost, and along with market competitory,project is need to new profit—material manage. Depend on reckon, in our country, Material cost of industry is account for 50%--60% of merchandise, but in U.S.A, makings cost is shortage 10% of assembly cost. This exponent largeness potential in materil flowing. Many indurstrys are cognizant of returns potential of material flowing and function in the manage, cost cortrol is provided with importance purtance purport in increasing competition in the project and production. Industry developed country in west quite set store by material manage. Early, the emphases in it emhance the storage, mostly artifice is make sure order goods quantity, and that employ cost least. But, along with modern manufucture spreading and production size enlarge, relation materiel provide and yielding gets over osculation, materiel manage not only limit to storage. It is bring to importance change. Appearing much new manage mode, thereinto is COPICS (Communications Oriented Production In Formation and Control System). 2.Material and material management It is requires reasonable plan and control in material management. Before storage, the material should be sample check up by ICQ, and the ICQ must check the bill carefully, material permitted storage while measure up. In order to make material can be clear at a glance for correlation person, the storage man should number sort and badge the material, every kind of material be fill in and stick one piece of material sign card. There must be have sort (materials,semi finished articles or finished product),name/size,contract number/goods number ,date of storage on the "sign card",and must be have measure up seal of ICQ. Storage are also be think about safety, for example if material is too high, or reasonable and criterion, if route way is through, if airiness, if fireproofing measure are all ready ect. 3.The stock batch of material stock The produce charge of one part C should is the sum for these charges of rough ∑Ctr, working procedure ∑Cop, stock ∑Cst, transport costs∑Ctr, resource loss ∑Cre and overhead expenses Cn: C=Cr+∑Cop+∑Cst+∑Ctr+∑Cre+Cn. There are two process in the requirement plan of materiel,the first is to compute the amount of simple requirement on the basis of the main production plan and stock and material bill;the second is to confirm amount and time which are confirm in the plan on the basis of advance course and batch rule of material. The simple requirement is always affirmatory for definite the main production plan,and that advance course and batch rule worth while researchful. The advance course that used at present is a fixed value for a materiel, The advance course is always change along with the variety and amount of workpiece; It is to satisfy request and reduce cost to confirm the batch rule, therefor,we bring forward the concept of optimization order.4. bottleneck produce The definition of bottleneck is any resource under specifically demand, in other words, the bottleneck is a process limit output.it is a pointthat the flux become narrow in the making process. One bottleneck may betideone machine or one technicality equipment, etc. The definition of output ability is availability time that may produce. Nonbottleneck is a resource ,its output ability is bigger than specifically demand. Therefore, nonbottleneck should not be done sostenuto,because that can procreative is more than its requisite.one nonbottleneck include otiose time. The price of raw and processed materials and manpower cost are advanced gradually because the demand of consumer is diversification increasingly in the near year. Traditionary production mode is faced with austere challenge.It already become problem which is attented by corporation and academia every country. In this status, TOC develop rapidly in occident country,and it exceed bound of production manage far away.it already become sizable scope and influence at the domain of theory study and corporation application and software empolder and so on. bottleneck manage is "Theory of constraint", for short TOC. 5.The relationship between the material stock and bottleneck process To aim the realization of produce process in enterprise by the material management working (1.)Betimes: be able to afford when required (2). Qualified: quality of material enters or sends out measure up (3).Quantity: to control the quantity of material entered (4).Cost: use reasonable cost to get the measure up material (5).Place: the distance between service dealer and use department be shortest and send be fastest In current market competition, time become one of the most important factor for success, in some degree, competition essential is time—based competition, process must be shorten impossibly. John.chambers, the CEO of cisco said:"in internet economic not the bigger knock over the smaller, but the faster knock over the slower,"speed is the key for success inenterprise. Corporation,correspondence and in-phase is the features to get the maximal benefit in "pull"management. 6.We can gained hereinafter conclusion via upwards disquistion: Arrange the stocking plan in allusion to the main plan of production, prepare the stocking batch in reason,shorten cycle of the goods, depress the cost of stocking try our best. (1).produce mode on time should be taken the stocking manage finely according to time, settle the stockpile with reason and try our best to make the stocking zero. (2). bottleneck should be settled better,the production batch plan of SD7&SD8 should be carried out one by one at the base of guaranteeing one hundred T140 bulldozers every month.It is the best plan of production organizing at present. (3). for the pivotal part and pivotal organise and bottleneck part , production and should be controled stocking time reasonably.it should satisfy the market maximum in the precondition of the depress cost.