A Method for Calculating the Cost of Turned Parts

Cost of turning parts

Due to the development of science and technology, the machinery for turning parts and components has changed a lot. From the traditional manual ordinary turning machinery (referred to as "ordinary lathes") to automatic turning machinery with cam mechanisms (referred to as "automatic lathes") and computer numerically controlled turning machinery (referred to as "CNC lathes" or "computer lathes"). These changes have greatly improved the overall machining accuracy, machining speed, and product consistency of the machined parts. Different types of turning equipment will have different costs for the same turning parts, so there will be different prices. Therefore, it is also a critical step to find suitable machining, which requires engineers who estimate the price of parts to have a high understanding of the processing machinery and the processing technology of the product. Reasonable manufacturing cost also has strict quality control standards.

No matter what kind of turning machine is used for processing, the price of turning parts can be easily calculated. The price of turned parts is calculated as follows: material cost + processing cost + post-processing cost (heat treatment, surface treatment, etc.) + packaging cost.

Cost of turning materials

The first item is the cost of materials, which is a very physical problem. Calculate the volume of the material required for the part and multiply it by the density of the material (the density of different materials is different, and the information is available online), and you will get the weight of the material to be processed. Then, according to the formula (component weight * material unit price = component material cost), the material cost of a single component can be obtained. This cost will not vary greatly in the valuation of different companies.

Machinist machining expenses

The second item is the processing fee, which requires the professional level of the appraisal engineer. The biggest difference in product valuation between companies is the processing fee. An appraisal engineer needs to understand the drawings of the parts to be processed, the processing technology of the products, the processing characteristics, and the advantages of various turning machine tools. Because different turning machine tools have different levels of processing accuracy and processing efficiency, the same process on different turning machine tools has different processing costs. The following is an estimate of the processing cost of parts from the lathe and the machining technology of the parts.