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How To Avoid Or Reduce Burr In The Machining Process?
Oct 15, 2017

How to avoid or reduce burr in the machining process?

3 points should be consider to reduce burr in the machining process

Parts in the process, usually have different degrees of burrs.If we can suppress or control burrs within the allowable tolerance range during the machining process,This eliminates the need for specialized deburring process, you can save a lot of man-hours and costs.So our technical staff should consider below points.

1.The choice of material

Physical and mechanical properties of the workpiece material has a great influence on burr formation.Such as deformation hardening exponent, elongation, tensile strength and hardness, etc. It is well known in the cutting process, casting burrs generated much smaller than that of steel, and therefore, in the part design, strength calculation under the premise of satisfying the requirements should be used wherever possible deformation hardening index and low elongation of the material, in order to reduce the generation of burr.

2.Part Design

2.1 Chamfering method adopted at the intersection at the edge,So that free burr at the edge.
2.2 At the root of internal and external threads should be undercut for machining,deburring the intersection with the cylindrical or threaded bore.

3.Selection of appropriate machining process sequence and method
3.1 Change the machining sequence to achieve less face, burr-free machining
3.2 Change processing tools, reducing machined surface burr
3.3 Change the cutting direction, so that no burr Face
3.4 CNC increase deburring processes to achieve parts without burr