The gold cutter is used to cut gold samples of various metals and non-metal materials in order to observe the gold phase of materials and the rock phase. With cooling devices, the cooling fluids are used to remove the heat generated during cutting, and to avoid the burning of the gold and the burning of the specimens.

The direction of cutting is required.:For different materials, there are requirements for cutting direction.

· Vertical sampling is the removal of samples in the direction of exercise, which can be used to detect deformation of non-metal-melt-filled impurities, crystal-particle malformation, plastic deformation, various forms of tissue after a transformation, the overall state of thermal treatment, etc.

· Horizontal sampling is the vertical removal of samples from the direction of exercise, which can be used to detect tissues from the surface to the centre, crystal particle level, carbon network, surface defects depth, oxidation depth, decarbon depth, corrosive depth, surface chemical thermal treatment and plating size, etc.

The requirement of the direction of cutting can be achieved by the direction of the cutter and the direction of the sample.

Keep the material as original as possible when cutting:The gold-phased requirements are based not only on the point of view of the ease of observation but also on the purpose of observation.

· For example, if you cut the coating from the matrix to the coating, the cutting process will have some tort effect on the collage of the coating and the matrix, leading to a binding deformation and impact observation.

· For example, if the torn-up stress of the cutting process is strong, using soft or hard materials, this may cause a physical change in the matrix and affect observations.

The process of cutting leads to a deformation of tissues that can be minimized by controlling the speed and direction of the blade, as well as by effective cooling.