Questions tagged [grinding]

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2answers
30 views

Can I use household vacuum cleaner with AquaFilter as construction/industrial one

I'm going to buy Thomas vacuum cleaner with Aqua filter and use it to sand walls a bit with grinder. And after finishing the decoration, use it as an ordinary cleaner. May construction plaster, putty ...
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0answers
29 views

Can the fillet radius of an edge shaped by grinding be guessed from the grit size of sandpaper?

Assumptions Assume a small bore hole with a few mm diameter in a hard plastic plate (e.g. POM), and further assume that after drilling the hole the surface of the plate is grinded with a disk with ...
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0answers
20 views

use of grinding wheel cutter instead of cold saw cutter [closed]

We have a 3" pipe mill, in which ERW pipes are cut with the help of 18" cold saw cutter to cut thin section pipes. Can we use grinding wheel cutter instead of cold saw cutter? cold saw cutter are vary ...
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1answer
559 views

How is sandpaper grit size (the FEPA number system) defined?

Sandpapers are labeled to show their coarseness according to different standards. The CAMI system is used in e.g. the USA, and the FEPA system in Europe. I am interested in the FEPA system. It labels ...
3
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1answer
696 views

Definition of the “specific material removal rate”?

I've run across a term in some grinding manufacturing research papers called the specific material removal rate. The units given for this term are [mm$^3$/mm$\cdot$s] (I don't really like this style ...
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0answers
53 views

Measurement of grinding wheel waviness [closed]

I have done experiments on a grinding machine and have collected the data of grinding wheel profile (using a laser sensor). The raw data consists of info on grinding wheel profile, waviness and ...
4
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3answers
551 views

How to select the correct grinding wheel type for precision grinding of tool steels?

I am planning to move from conventional grinding wheels to super-abrasive grinding wheels. I am unable to decide the right type of super-abrasive wheel for my manufacturing operations (I am into knife ...
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2answers
1k views

Difference between an angle grinder and an abrasive saw

It seems to me that abrasive saw is a term mainly used in the US (the Wikipedia article on it has no links to pages in any other languages), whereas angle grinder has some 20+ translations. So, can ...
1
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2answers
658 views

What is an effective method of turning polyurethane foam into a powder?

I want to grind flexible polyurethane foam to a size of about 50-100 microns. The feedstock is shredded 1.5 lb/ft^3 polyurethane foam. I tried a commercial meat grinder, which works but is very slow, ...
3
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1answer
1k views

How to prevent static buildup in an electric burr mill coffee grinder?

Every morning when I get up, I use this coffee grinder to grind beans for my morning coffee. When I remove and subsequently open the top of the bin, I often find that enough static electricity has ...
2
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1answer
447 views

How to use sample holder on Metallography specimen preparation machine Struers Tegrapol-21

In lab we have Struers Tegrapol-21 grinding and polishing machine. I use it for sample preparation. Usually I put 6 samples at once and prepare them with sample holder. However today I need to prepare ...