Product Overview
The machine is designed for precision drilling and boring of cold-drawn and hot-rolled steel pipes, as well as non-magnetic materials. It can also perform drilling and trepanning on round steel bars. The use of specialized tools improves the dimensional accuracy and surface quality of the inner holes of steel pipes. Materials that can be processed include ordinary carbon steels, high-quality carbon steels, and low alloy steels such as 20, 45, 16Mn, 25Mn, 27SiMn.
Three Basic Machining Methods
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1. Workpiece Rotation (Drill Head Brake)
The headstock drives the workpiece to rotate, while the boring bar drives the combination head, drill bit, and German-style hydraulic fine boring and rolling tools to feed. Ideal for precision machining on hot-rolled steel pipes.
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2. Tool Rotation (Headstock Brake)
The headstock is braked to keep the workpiece stationary. The boring bar head drives the boring bar to rotate. This function performs fine boring and rolling on hot-rolled or cold-drawn steel pipes with pre-bored inner holes, correcting drilling deviations.
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3. Dual Rotation of Workpiece and Drill Bar
The headstock drives the workpiece to rotate, while the boring bar head drives the boring bar to rotate and feed simultaneously. This method significantly improves the straightness and efficiency of the machined parts.
Frequently Asked Questions
❓ What materials is this CNC machine suitable for?
It is designed for ordinary carbon steels, high-quality carbon steels, non-magnetic materials, and low alloy steels such as 20, 45, 16Mn, 25Mn, and 27SiMn.
❓ What is the maximum machining length and diameter?
The machine supports a boring diameter range of Ø30-250MM and a maximum machining length ranging from 500mm to 12000mm.
❓ Can this machine correct drilling deviations?
Yes, by using the "Tool Rotation (Headstock Brake)" method, the machine can correct deviations and is particularly suitable for machining drill collars and petroleum components.
❓ What surface finish quality can be achieved?
The boring surface roughness reaches Ra1.6-3.2, while roller burnishing can achieve a high-precision finish of Ra0.2-0.8.
❓ What are the benefits of the Dual Rotation method?
The dual rotation of both the workpiece and the drill bar improves the straightness of the hole and significantly enhances machining efficiency.
❓ Does the machine support automatic operation?
Yes, it is a fully automatic CNC horizontal drilling machine with high precision control.