PCB cutting machine Circular blade , pcb depanelizer machine

1.linear knife, manually cutting against up circular knife,for reduce stress.

Introduction

Separate machine blade is made from tungsten steel material . Round steel circular blade is made through precision grinding and polishing finishing . Its characteristics are high hardness and high wear resistance, sharp and durable. Its useful life is longer above 5 times than high speed steel blade, It is applied to feeding type and V groove plate cutting of the PCB printed circuit board.

Features of blade

1.the content of WC%:90.
2.the content of Co%: 10.
3. high hardness of HRA:92.4.
4.the density of g/cm3:14.4.
5. flexural strength MPa:3400.
6.the elastic modulus GPa:490.

Production

There are two steps of production process of the cutters:  tungsten steel machine blade and blade molding finishing

A. The production process of blade blank material

Dosing (according to the applicable requirements to select tungsten carbide powder and cobalt powder) →fully mixing→crushing→drying→sieving→ then adding forming agent → drying again → sieving to get mixed material→ granulation→pressing→forming →(German imports low-voltage vacuum sintering furnace) low-pressure sintering → after sintered blank → testing (nondestructive ultrasonic inspection)→blank size accuracy test.

B. Blade precision processing.

clamping →fine grinding plane → fine grinding inner circle → fine grinding positioning holes→  external circle grinding→ rough edge→ fine edge→truing the outer circle→surface polishing→ microscope inspecting edge→ marking→packing clip to fine.