1、 Cleaning
The surface of the object to be ground shall be decontaminated in the early stage, such as rust removal on the surface of the horse with wire brush and copper wire brush.
2、 Structural processing
The early macro structural adjustment of workpieces can be divided into the following two categories
(1) Cutting: resin high-speed cutting sand sheet, cutting sand sheet with mesh, emery cutting sheet
(2) Drilling: various drills, such as drilling drill, tapping drill, etc
3、 Intermediate adjustment
This category is between structure adjustment and surface treatment. For some soft materials such as paraffin wax and gypsum, this kind of tool not only plays the role of structure processing but also plays the role of surface treatment. It is a tool of intermediate transition type.
(1) Grinding: various special-shaped ceramic grinding heads, sand rings, sand drums, and pagers with handles
(2) Rotary file: such as woodworking rotary file, suitable for carving wood
4、 Surface finishing
Carry out the surface treatment of the workpiece in the micro direction in the later stage.
Mainly a variety of polishing tools: such as wool felt wheel, felt piece, small cloth wheel with different purposes, different levels of polishing paste, abrasives, etc.
5、 Nursing decoration
For example, the wax (solid wax and liquid wax) used for waterproof, antifouling, coloring, glazing, warranty, repair, anti-static, anti-oxidation, UV protection, and high-temperature resistance on automobiles, and even the wax that can volatilize fragrance after use, can only be said that the rich people really play.
notes:
（1） Although material loss will inevitably occur during polishing, resulting in slight shape change, such change will not affect the overall structure, and this (slight shape change) is not our subjective purpose, so it needs to be distinguished.
（2） Rotary files are similar to drill holes, but they are different. The former is used for surface treatment, while the latter changes its shape.