|
Grain size |
Cutting edge accuracy |
Grain size |
Application |
|
A (rough) |
0.05mm |
230/270#~320/400# |
Rough grinding |
|
B (medium) |
0.02mm |
M20~M40 |
Medium grinding |
|
C (finish) |
0.005mm |
M5~M10 |
Finish grinding |
Table1 Classified by cutting edge accuracy and usage
|
Serial number |
Degree of failure |
Grain size |
Remarks |
|
A (rough) |
Broken cutting edge 0.5mm |
230/270#~320/400# |
Or electroprocessing |
|
B (medium) |
Cutting edge burst 0.3mm |
M20~M40 |
|
|
C (finish) |
Cutting edge wear 0.1mm |
M5~M10 |
|
Table 2 Classification by the degree of cutting tools failure
Rough machining does not require high cutting edge, and electrical machining or grinding can be selected. The electrical processing efficiency is high, and it is suitable for processing complex tools, such as drill bits for printed circuit boards, forming milling cutters for cutting laminate flooring, etc. Coarse-grained grinding wheel can be selected for grinding, with large contact area and high grinding force (300～400N) during sharpening, which can quickly remove excess machining allowance.
Evaluation of circuit board quality and process improvement requires slicing as a basis for objective inspection and judgment. Slice analysis using metallographic equipment is an important means to check the thickness of PCB/PCBA internal circuits, number of layers, through hole aperture size, through hole quality observation, PCB/PCBA solder joint cavity, interface bonding status, and wetting quality evaluation.
Moresuperhard offers resin diamond cutting discs and metal diamond cutting discs specifically for cutting in the glass industry. It can be used to cut glass optical devices such as quartz glass, K9 glass, coated glass, etc. It can also be used to cut various glass tubes, glass spouts, high borosilicate glass tubes, capillary glass tubes, quartz glass, and crystallized glass.
Add: Zhongyuan Rd, Zhongyuan District, Zhengzhou, 450001, Henan, China
Tel: +86 17700605088
