CNC Machining "style=" color: rgb (79, 129, 189); font-size: 24px; How to quote for CNC machining

When outsourcing processing, quotation is a crucial step, especially for CNC machining, where quotation is of utmost importance. In CNC machining, there is a certain calculation formula for quotation. These formulas can help everyone calculate the price of CNC machining reasonably.

CNC machining centers are mainly used for processing various types of small and medium-sized batch parts. With the gradual decrease in manufacturing costs of CNC machining centers, there are also cases of processing large quantities of parts. When processing small batches and single piece production, it is also possible to shorten the debugging time of the program and the preparation time of the tooling.

CNC machining centers process parts with low surface roughness values. The surface roughness depends on the cutting speed and feed rate when the material, precision machining allowance, and tool angle of the workpiece and tool are constant.

1 Product cost analysis

When quoting for CNC machining, the first step is to conduct a rough analysis of the product‘s cost. Provide more accurate data basis for quotation.

1. Inquiry process: Receive business, purchase new products - Inquiry - Understand content, confirm requirements - Seek suppliers - Check previous quotes for similar products - Manufacturer quotes - Confirm unit price for approval by supervisor - Respond to relevant units - Track and confirm unit price and other information - Feedback and report.

2. Valuation process: Review the business evaluation report - Content analysis - Fill in the valuation details - Supervisor approval - Send the original to the business department - Track and confirm the quotation - The business will enter the confirmed original quotation details into the computer - Confirm the cost of each process.

2 Planning standards for CNC machining machines

The first calculation standard (when the program simulation time is less than or equal to 120 minutes)

Planned time=[Calculation of clamping measurement time+Heat up time+(Program simulation time * 1.7 times)] * Number of pieces

The second calculation standard (when the program simulation time is greater than 120 minutes)

Planned time=[Calculation of clamping measurement time+Heat up time+(Program simulation time * 1.5 times)] * Number of pieces

The clamping and measuring time (outside the program running time)=cleaning+clamping and calibration time in minutes+installation and disassembly of tool heads, tool copying+measurement+workpiece disassembly time

Note: Basis for measuring clamping time

Workpiece: The cleaning time is 1-2 minutes per piece, and the installation and removal of the cutting head is done manually every minute. The caliper calibration meter measures 0.5 times per minute, and the wave measurement measures one number per minute. Disassemble the workpiece for 1-5 minutes per piece.

Copper Gong: The cleaning time is also 1-2 minutes per piece. The clamping calibration table is one piece per minute. Use an automatic knife to disassemble the blade, with each blade being removed every minute. The measurement is the same as the workpiece. Disassemble one piece per minute.