Reasons for the Increase of Hole Diameter in Deep Hole Processing
In the process of deep hole processing, hole diameter reduction and hole diameter enlargement are common problems. We introduced the solution of hole diameter reduction in deep hole processing for you before. Today we explain the problem of hole diameter enlargement for you.
In deep hole processing, there are many reasons leading to the increase of hole diameter, such as reamer problems: the design value of reamer outer diameter is too large, the cutting edge of reamer has burrs or chip tumors, the floating is not flexible, the main deflection angle is too large, the reamer is bent, etc; the cutting speed is too fast in deep hole processing; the feed is inappropriate or the machining allowance is too large; Inappropriate liquid; oil stain or bump on the surface of taper shank; taper shank flat tail offset loaded into the machine tool spindle by taper shank conical interference; spindle bending, bearing relaxation or damage; uneven exertion of both hands, resulting in reamer swaying left and right.
The deep hole processing factory summarized the reasons for the increase of the hole diameter, and gave the corresponding solutions. For reamer problems, workers should appropriately reduce their external diameter, keep the edge clean and tidy, adjust the main deviation angle, abandon the bending reamer; adjust the cutting speed, feed and allowance; select the appropriate cutting fluid; clean the taper shank, replace the bending spindle; standardize the operating procedures.
