Calculation of machining cost

Calculation of machining cost

Mechanical processing cost calculation must understand the process, in order to estimate the processing time, to quote.

The calculation of machining cost can be said to be very simple or complex. The key depends on your company’s situation. For a large company, you should consider various cutting efficiency, tool performance, machinery and equipment performance, etc. if it is a small mechanical processing plant, according to your expenses, including rent, water and electricity, master’s wages, tool wear, equipment loss, etc., how much should you spend a day, plus your own estimated profit.

You’ll have to finish your parts in three hours. If your profit is 5%, your profit on this part is 15 yuan. In this way, it is very simple. In addition, mechanical processing cost calculation must know the process, in order to estimate the processing time, to quote.

Wire cutting processing fee is generally calculated according to the total cutting area, 0.xx yuan / square millimeter

For example, according to the processing area / 1200 * 8 yuan

There are usually two calculation methods

  1. 01 yuan / mm2,
  2. Parts that are too small are generally calculated by piece

In most places, it’s 5cm / m2!

The machining cost of ordinary WEDM is generally calculated according to the wire cutting area, and the workpiece height is also high, and the corresponding price will be high

The price of slow wire cutting is about 10 times that of ordinary wire cutting

In Jiangsu and Zhejiang provinces, slow wire processing generally costs 60 yuan per hour (the average cutting efficiency is 40-60mm / min), but the higher precision die cutting costs 80 yuan, because once scrapped, it needs to pay the material cost

Processing time calculation: Processing cross-section area / (1200-1800) = the required time, 1200-1800 is an adjustable parameter, generally taken as 1500, and then multiplied by the hourly processing fee

Fast silk words some can 0.015 yuan mm, also have 0.005 yuan mm

There are also 10 yuan hours

Slow wire cutting tool 0.03mm

Slow wire cutting two cutters 0.038mm

Slow wire cutting with three cutters 0.045mm

Slow wire cutting four cutters 0.055mm

Fast wire is 5 yuan per hour. Generally, each machine can cut 2.5 hours per hour

The cost of WEDM here is basically 10 yuan / hour

WEDM is divided into fast wire and slow wire, and their processing accuracy is different, such as computer gong processing, mechanical parts processing, CNC machine tool processing, Dongguan high-speed computer gong processing

The slow wire can reach 0.001 mm, but the fast wire can’t. I’ve made Sadik’s slow silk. The processing fee is calculated according to the area and also depends on the number of knives. The price of cutting one repair is obviously different from that of cutting a few. If the height of parts processed exceeds one, it will be doubled. If the processed materials are different, their prices are not the same. For example, cutting tungsten steel is twice as much, usually 2-3 times. They can process at least 50 yuan a piece (excluding batch)

Standard charging method: 0.08 yuan / square millimeter

Common wire cutting; sectional area / 1200 * man hour unit price

Standard charging method: batch processing 0.08 yuan / square millimeter, mould 0.12 yuan / square millimeter

The fast one is 8 yuan / hour

Generally, Sodick aq550ls is used to make the first cutting, and the second cutting is about 5 times of the first cutting. The third one is faster!!

Fastwire is about 1200-1800

And then take your own set fee!!

Wire cutting is divided into fast wire and slow wire

Ordinary wire cutting is generally calculated by wire cutting area, and the workpiece height is also high, and the corresponding price will be high

The price of slow wire cutting is about 10 times that of ordinary wire cutting

In Jiangsu and Zhejiang provinces, slow wire processing generally costs 60 yuan per hour (the average cutting efficiency is 40-60mm / min), but the higher precision die cutting costs 80 yuan, because once scrapped, it needs to pay the material cost

Processing time calculation: Processing cross-section area / (1200-1800) = the required time, 1200-1800 is an adjustable parameter, generally take 1500, and then multiply the hourly processing fee.

In the case of fast wire, some can be 0.015 yuan mm, and there are 0.005 yuan mm

There are also 10 yuan hours

Slow wire cutting 0.03mm

Two cutting tools 0.038mm

Slow wire cutting three cutters 0.045mm

Professional mechanical processing fee calculation, mechanical processing fee calculation formula, mechanical processing fee calculation method.

The general principle of non-standard parts processing and cutting process arrangement is: the front work must be ready for the later work, lay a good foundation, and do a good service. The working principle of non-standard parts processing can be divided into four aspects

Just like building a house, the foundation determines the height. Only when the foundation is built well can the house be built high. The same is true for precision mechanical parts processing, which always processes the precise datum first, and then processes other surfaces by the precise datum positioning. For example, for box parts, the main hole is generally used as the rough datum to process the plane, and then the plane is used to process the hole system; for the shaft parts, the outer circle is generally used as the rough datum to process the central hole, and then the center hole is used as the fine datum to process the outer circle, end face and other surfaces. If there are several precision datum, the machining of base surface and main surface should be arranged according to the sequence of datum transformation and the principle of gradually improving machining accuracy.

Secondly, the processing sequence of non-standard parts should be determined, and the sequence should be done well. Generally, the main part should be done first

About the author

chengcg administrator

    Leave a Reply