Quality problems and solutions for turning slender shafts at Dongguan CNC Precision Machining Factory 1

When turning slender shafts at Dongguan CNC Precision Machining Factory, due to the poor rigidity of the workpiece itself, improper adjustment of auxiliary tools such as the center frame and tool holder can result in unsatisfactory geometric shape and surface quality, mainly in the following aspects:

Bend,the workpiece has a large aspect ratio and poor rigidity; The radial cutting force and centrifugal force during turning generate thermal deformation, elongation, and cutting stress on the workpiece; The raw material itself is a deformed rod, and various reasons can cause the workpiece to bend.

The solution is to use a center frame and a tool holder to increase the rigidity of the workpiece; Reasonably select the geometric angle of the cutting tool (mainly large rake angle and major deviation angle) to reduce radial cutting force and reduce the generation of cutting heat; Use spring tips to reduce the adverse effects of linear expansion of the workpiece, fully pour cutting fluid, reduce friction and quickly remove the generated heat, and perform necessary heat treatment on the blank or workpiece.

If there is bending in the raw material itself or during processing, it should be straightened in a timely manner before continuing turning. Dongguan CNC Precision Machining Factory can choose appropriate methods such as hot forging straightening, cold pressing straightening, counterattack straightening, prying straightening, simple tool straightening, quenching straightening, and anti torsion groove straightening according to needs.