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The Checklist of Boring Machining Fundamentals
A boring project that meets all the specified requirements of enlarging a pre-drilled hole starts with knowing the fundamentals. While experienced machinists are well-versed in these boring basics, the beginning operator will find this six-step checklist helpful.
ONE: Setting Boring Tool Alignment to the Pre-existing Hole
The first step is not just a step, it's a crucial foundation: aligning the tool and hole. This step is the bedrock that secures the workpiece, preventing any movement that could lead to misalignment.
TWO: Selecting the Boring Tool
When choosing the boring tool, consider the material of the workpiece and the finish. It must be the correct size and be able to cut the specific material efficiently.
THREE: Establishing the Cutting Speed and Feed Rate
The proper cutting speed and feed rate are not just numbers, they are the exact balance based on the type of tool, the hardness of the material, and the exactness of the cut. This balance is crucial to avoid tool damage (too fast) or a poor finish (too slow).
FOUR: Making the Cut
To make the cut in the existing hole, the machinist mounts the boring tool on the boring bar and proceeds with a linear movement into the hole to precisely remove material. This process enlarges the hole diameter while improving its finish.
FIVE: Controlling Depth and Diameter
To correctly control the cut’s depth and the hole’s final diameter, the operator must be vigilant and monitor the process. This practice allows the machinist to adjust parameters, creating a new hole and finish that meet specifications.
SIX: Applying Coolant
Choosing and applying the proper coolant reduces heat build-up and prevents both malforming the material and tool.
Universal DeVlieg provides innovative and cost-cutting tool holding and high-precision boring solutions to the machine tool industry, servicing a diversified customer base. The combination of over 32,000 active part numbers, over 10,000 standard items, and our technical support staff deliver design engineering expertise that is unmatched in the industry. To learn more about Universal DeVlieg, contact us at This email address is being protected from spambots. You need JavaScript enabled to view it. or 877.308.3077 or visit at universaldevlieg.com.