1. break down the cost components;
2. determining the formula for calculating the cost components;
3. determine the source and accuracy of the data;
4. form a model based on the previous steps.
- After-sales costs ;
A mold cost basically contains the above 9 parts of the cost, the general mold factory will also be counted on the auxiliary costs of about 5% of the mold cost, the rest is the profit part of the mold.
1. design cost:
And labor costs Closely related to the labor cost, so we need to understand the supplier's regional wage level in order to better estimate the labor cost. Mold design generally includes CAD structural design & 2D drawings, CAE flow analysis and CAM programming. However, when considering the mold design cost is usually considered only the cost of CAD and CAE.
Generally depending on the size of the mold, the complexity of the degree of difficulty, in fact, the mold factory quotes are different. Ningbo area generally large mold accounted for 2% of the total cost, small mold design cost 2.5% ~ 3%. General mold design engineer salary 8K ~ 12K or so, experience senior more than 10 years of large mold factory can get between 15W ~ 25W, technical minister more than 30W.
Design generally includes CAD structural design & 2D drawings, CAE mold flow analysis, CAM production department Programming.
2. material cost:
The larger the tonnage of the mold, the larger the mold carrier. Generally, the larger the mold frame, the lower the cost, accounting costs in accordance with the weight of the direct accounting, but to remove the gap part of the mold feet. Mold frame material is generally 45#, 50#, 55# steel, 50# steel mold frame cost in 12~13 yuan/Kg.
According to the design life of die-casting mold
Choose the material of die frame, due to the aluminum alloy die life is generally in 8~100,000 die times, the die frame can be reused to meet the life of 30W~40W. So we need to consider the reuse of the mold frame in the daily copy of the mold.
The material cost is mainly the cost of mold frame and core. It should be noted that if the mold life has come, ready to open copy mold, need to go to identify whether the mold frame can be reused; If can be reused, then copy the mold cost can be greatly reduced. Heat treatment cost, for die casting die, heat treatment cost is also a big head, including tempering, vacuum quenching, nitriding and other steps of the cost. The specific cost of the high and low depends on the size of the supplier. SWPH13 Beilun Xingbo 8 yuan or so, a year the volume will have a preferential price of 6 ~ 6.5 yuan / Kg; Nitriding treatment of 2 ~ 3 yuan / Kg; A Shengbai's material 25 yuan or so, the agreement price of 17 yuan or so.
3. Manufacturing costs:
including machine tools, spark machines, wire cutting and other equipment costs and labor costs such as matching molds, polishing. General mold processing costs can not exceed 20% of the cost of the entire mold.
5. Inspection costs: mainly for the key dimensions of the mold, electrode, die core process inspection and subsequent factory inspection, inspection costs accounted for 1-2% of the total costs
4. Test mold transportation and packaging costs:
General mold company internal constant is 2 times trial mold index, 800T mold below trial mold cost 1-1.5%; 800T above trial mold cost 2%. Aluminum alloy die casting trial mold cost is relatively cheap, and magnesium alloy die casting trial mold cost will be higher, because magnesium alloy on the material safety performance requirements are higher; magnesium alloy material unit price is higher; plus magnesium alloy die casting furnace and aluminum alloy is not the same. It should be noted that the general trial mold
The number of times should not be more than 3 times, if more than 3 times, the cost of the trial mold should be borne by the mold factory itself, because it is due to their mold itself has a problem only led to the need for multiple trial mold. In addition, the parameters of the equipment must be debugged accurately to ensure that the trial mold smooth.
Transportation cost depends on the customer's geographical distribution, generally 0.5%, 1.5% for long distance. Moulds belong to heavy goods, a single transport may be a car can only be loaded with a mold, so the cost of transport will be higher.
5. After-sales service and taxes:
After-sales service costs generally account for 5% of the special requirements except for molds.
Taxes are generally removed from the material credits the company will have to bear 9%.
The above costs basically represent 90% of the mold company's offer status, the general gross profit at 15% -18%.
Remove equipment depreciation, bank loans, pension insurance Factors such as to ensure that 5% -8% of the net profit mold company is quite good.