修枝剪剪切痕迹研究

A Study on the Pruning Shears Traces

修枝剪是剪切树木枝干的专用工具,它的结构和剪切原理与普通剪类工具不同。修枝剪剪切树木枝干易形成印压痕迹、线条状痕迹和折压痕迹,这些痕迹受剪切工具和客体的影响会产生一定的变化,其中线条状痕迹、印压痕迹和剪切面的形态可作为判别此类工具的依据。

The pruning shear is a special tool in basic branch cutting.It has a distinctive structure and cutting princeple that is different from the common cutting tools.The cutting marks left on the branch by using the pruning shear include the imprinting,straightening and creasing marks.These special cutting marks resulting from the use of this special pruning shear will definitely be affected by different cutting tools and objects.And the imprinting,straightening and creasing marks can be used as evidences to distinguish such tools.