Slotting cutter, equipment and slotting method for testing fracture toughness of graphite material
A graphite material and fracture toughness technology, applied in the field of slotting for graphite material testing, can solve the problems of inaccurate results, different groove sizes, and experimental errors in shapes, etc., and achieve the effects of precise structure, average stress, and improved reliability
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Embodiment 1
[0058] Such as Figure 1 to Figure 4 Shown, a kind of notching tool for fracture toughness test of graphite material, comprising:
[0059] Knife handle 1, described knife handle 1 is cylindrically set, and it comprises clamping part 11 and connecting part 12 from top to bottom, and the diameter of described clamping part 11 is J, and length is K, and the diameter of described connecting part 12 The diameter is U and the length is M;
[0060] Blade 2, the blade 2 is concentrically arranged at the end of the connecting portion 12, it is integrally arranged with the connecting portion 12, and its diameter is P, its thickness is Q, the outer circumference of the working area 22 of the blade 2, etc. There are a number N tooth-shaped blades 21 with a tip height H distributed thereon, the relationship between the diameter P of the blade 2 and the number N of blades 21 satisfies: πP / 3≤N≤πP / 2;
[0061] The handle 1 rotates to drive the blade 2 to rotate synchronously, so that the bla...
Embodiment 2
[0096] Figure 5 It is a schematic diagram of a slotting tool for testing the fracture toughness of a graphite material according to the second embodiment of the present invention; Figure 5 As shown, the parts that are the same as or corresponding to those in the second embodiment are marked with the corresponding reference numerals of the first embodiment. For the sake of simplicity, only the differences from the first embodiment will be described below. This embodiment two and image 3 The difference of the shown embodiment one is:
[0097] Such as Figure 5 and Figure 6 As shown, the blade portion 21 of the working area 22 of the blade 2 is provided with steps, so that when the blade 2 cuts the graphite material, the graphite dust generated during the cutting process can be promptly and quickly discharged.
Embodiment 3
[0099] Referring to Embodiment 1, a slotting device of the present invention is described.
[0100] Such as Figure 15 and Figure 16 As shown, a slotting device includes a CNC machine tool 4 and a workbench 5, the spindle 41 of the CNC machine tool 4 is rotated, and the spindle 41 can be lifted and lowered, and the workbench 5 is arranged below the spindle 41 , which moves relative to the main shaft 41, and its upper end is detachably provided with a clamp 51, which clamps a vertically arranged graphite material sample 3, and also includes a graphite material fracture toughness in the first embodiment above. For a slotting tool for testing, the clamping part 11 of the handle 1 is detachably connected to the main shaft 41 coaxially, and the blade 2 is driven by the main shaft 41 to rotate, and the graphite material sample 3 is suspended outside the fixture 51 The part is grooved to form the detection groove 31 .
[0101] Wherein, any side where the length L and the thicknes...
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