Numerical control CNC veneer peeling machine
manufacturers believe that when the blade cuts the wood,the rake face compresses the wood parallel to the fiber direction and generates shear stress along the fiber direction.When the blade of the CNC veneer peeler is a moment away from the wood and the shear stress exceeds the shear strength limit of the tree along the fiber direction,the wood layer in front of the blade is crushed.The crushed wood did not move upward along the rake curve,but continued to be compressed by the rake face.At the same time,the stress is transferred to the adjacent wood layer that has not yet been damaged.When these materials are further compressed,chips are formed and discharged from the rake face.After that,as the tool moves,a new chip formation cycle begins.
When cutting with a CNC veneer peeling machine
,if the height of the tool tip is the same as the center line of the workpiece,and the cutting motion is not considered,the cutting speed direction is perpendicular to the bottom surface of the turning tool holder.Because the base surface is perpendicular to the cutting speed direction,the base surface at the point of the tool tip is the plane passing through the tool tip and parallel to the bottom surface of the turning tool.When designing and manufacturing the blade,the base surface marked on the blade work drawing is the above-mentioned base surface.When manufacturing and sharpening the angle of the tool,the above-mentioned base surface is also used to measure the rake angle of each point on the entire blade.The rake angle of each point on the main blade measured at this time has passed the tip and is parallel to the angle between the plane(base surface)of the bottom surface of the shank and the rake surface.The front angle is the sharpening rake angle,also known as the marked rake angle(or static rake angle).
After the cutter of the CNC veneer peeler enters the wood,it compresses the cutting layer of wood in the vertical fiber direction,and cuts the wood along the bottom of the cutting layer.At this time,the wood fiber in front of the blade of the CNC veneer peeling machine is parallel to the blade in its length direction,so the wood fiber is not separated by translational shearing under the action of the blade,but Chu cuts and rolls while forming a"rolling"Cut.Like longitudinal cutting,when the stress applied by the blade to the cutting layer of wood exceeds the limit of transverse fiber shear strength,the cutting layer of wood by the CNC veneer peeler is torn apart,and then this layer of wood is bent like a cantilever beam to form a piece Crumbs.The difference from longitudinal cutting is that the chip petals are not torn longitudinally along the fiber direction,but along the transverse fiber direction of the early wood part of the annual ring.
The above is about the function of the CNC veneer peeling machine
blade and how to cut wood.I hope it will be helpful to everyone.Of course,if you have other friends about the CNC veneer peeling machine,you can also call us directly.Customer service hotline!