Application of YSA precision drilling and tapping power head in heat sink
2022-9-9
Case of tapping and drilling of heat sink
Foreword: In some high-end applications, heat sinks are mostly made of aluminum or copper materials, which have high requirements for heat conduction, and some special structures transmit heat quickly. Therefore, the precision of drilling or tapping of heat sinks is high. At the same time, some heat sinks require a lot of drilling and tapping points. In most cases, multiple drilling power heads or tapping power heads are required to complete it.
Binde precision drilling power head and tapping power head have unique precision and structural advantages in the field of high-end heat sinks.
This case is for a well-known heat sink manufacturer, the drilling of fine holes for high-end computer heat sinks, and the processing technology of fine thread tapping.
Processing material: copper, hardness ≥85HV2
Processing hole size: Ø1 depth 4mm
Processing thread size: M1.2 depth 3mm
Features: drilling is blind hole, screw is through hole
According to the requirements of on-site drilling and tapping conditions, choose YSA precision drilling power head BD3-80 series power head products
Advantage:
1. This series adopts double servo structure, the main shaft and feed are all driven by electric servo, and the drilling and tapping can be used universally.
2. The energy efficiency ratio of the entire power head part is higher, and the taper circle runout is within 3U to ensure the machining accuracy of fine teeth and fine holes.
3. There is no need to replace consumable parts such as synchronizing wheels or braces. The self-contained drilling and tapping mode can set the required specifications and parameters, and there is no need to disassemble and assemble the original equipment.
4. Using a similar CNC control system, the second and third origins can be customized in the program, and different processing parts can be quickly debugged to the most efficient working system. The interface is intuitive and simple, and the maintenance is simple.
Tool selection: Japan yamawa, special cutting taps and drills for copper
Cutting oil: special oil for drilling and tapping
Parameters: Maximum drilling feed rate 12M/Min, tapping feed 15M/Min
Drilling spindle drilling speed 6500rpm, tapping speed 300rpm
The tapping process adopts 2-stage sequential tapping, each process is 1.5MM, and the pause time is 0.3S
Drilling is made of spiral cobalt-containing drills with upper chip removal, and drilling with flat bottom chip removal.
Effect: The tapping thread detection gauge is smooth, the stop gauge is 0.8 circles, the flat end face is flat without burrs, and the breakage interval is 5600 times/piece.
The roundness tolerance is 0.006MM by drilling with roundness testing equipment.
During the whole processing process, the output of the whole machine is stable, quiet and stable, and there is no pollution such as noise and oil pollution.
Summary: When the YSA drilling power head is used for this type of heat sink operation, thanks to the high-precision mechanism of the YSA YSA power head, the extremely low runout error, in the processing of fine holes, fine teeth, It has great precision advantages in the fields of tiny holes and so on. In cooperation with the CNC drilling and tapping system program, the processing efficiency is greatly improved.
