Then, how to calculate the material cost and processing cost of mechanical parts?
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Calculation of material cost of mechanical parts
Material costs mainly include labor costs, transportation costs, consumption costs, taxes, etc. The calculation methods of cost materials mainly include:
1. For a comprehensive understanding of the processing process arrangement, especially the requirements of key or complex parts, we should fully understand the process arrangement provided by the other party, pay attention to the details, and detail each process and the time consumption of the process. If there is any doubt, we need to communicate with the other party to determine the new process arrangement.
2. According to the hourly cost of equipment required for each different process, the processing cost can be calculated. This specific equipment processing cost can also be understood through the material supplier. However, it is recommended to consult several cooperative suppliers to ensure the accuracy and integrity of the information. For example, ordinary equipment such as milling machines and ordinary cars are processed at 30 yuan / hour. However, due to different regions, this price will also be different.
3. After the above contents are quoted, the packaging and transportation, management expenses, tooling tools and profits are required to complete the quotation price. In addition, the price will have a great relationship with the annual purchase volume and difficulty of the parts to a certain extent. It's easy to understand that there will be a lot of price difference between single piece and batch.
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Calculation of machining cost of mechanical parts
1. Sheet metal quotation calculation method
The processing cost of sheet metal is calculated by time: laser cutting is 8 yuan / minute, and each small hole is calculated by 1 yuan.
The numerical control pricing is 5 yuan / minute, and the numerical control bending pricing is 1 yuan per side.
The calculation of cold work welding is 70 yuan per day, with 50 kg per working day as the benchmark.
The above calculation method requires a clear understanding of the industry, but it is difficult to operate in daily processing and production.
The companies used for quotation of sheet metal parts processing mainly include:
Material price = expanded blanking kilograms * market material price
Calculation of processing fee: process, tax, management fee and freight are not considered.
2. Mold price calculation
The most commonly used formula for mold processing calculation during production is:
Mold price = material fee + design fee + processing fee and profit + VAT + mold trial fee + packaging and transportation fee
Each proportion is usually:
Material cost: materials and standard parts account for 15% - 30% of the total mold cost.
Processing fee and profit: 30% - 50%.
Design fee: 10% - 15% of the total cost of the mold.
Mold test: large and medium-sized molds can be controlled within 3%, and small precision molds can be controlled within 5%.
Packaging and transportation cost: it can be calculated according to the actual situation or 3%.
Value added tax: 17%.