has some knowledge, which is unpopular in the outside world, but common sense in the workshop. This common sense is hard to find even in books. As an industry person, how can you not understand these things?

1, "one millimeter" in the machinery industry is a considerable scale, even in the entire manufacturing industry. If you see an advertisement like "accurate to millimeter level" on TV one day, remember to pull the company black.

2. "Automation" is not equal to "robotization". Those who use robots are usually only a small part of the automation pipeline. Why? Because there's no need.

3. Robots are rarely used directly for machining processes, especially metal cutting. Because the reaction force of cutting metal can push the arm of most robots, except for the fine work of deburring.

4, quenching (cui) fire, the daily spoken language in the industry is generally "dipped in fire", "quenching (cui) fire" is read as "dipped in (zhan) fire" is actually to distinguish it from another opposite process "annealing. The noise in the steel plant workshop is noisy, but it is difficult to distinguish between quenching and annealing. As for why this pronunciation is called, it is actually related to the actual operation of quenching. In fact, it is to dip the hot workpiece in the medium, so it is called "dipped in the fire". However, some people say that it is changed because of the taboo of "brittleness. If you pronounce "quenching (cui) fire" in a business situation, the other party can immediately conclude that you are a novice.

5. In the past two years, looking at the artificial intelligence in seconds, most of the actual mass production can only process the production data for the time being.

6. 3D printing (rapid prototyping) is a technology that was actually produced more than 30 years ago and then dug up by some media with ulterior motives. The progress of this technology at this stage basically depends on the progress of materials science.

7. Few machines can work as designed after they are made. At this time, it is necessary to adjust (er) the current (xia) field (Ji) and try (zheng).

8. After working in this line for a long time, I can really see the bolt specification and length in my hand and how big a wrench I use without measuring with a ruler.

9, "light" refers to "fine" and "last time". For example, "light knife" refers to the "fine turning of the knife", "light knife" refers to the "fine turning of the last knife". The scope of "light" can be too wide, "fine grinding", "fine milling", "fine turning" and so on, generally refer to the last time, requiring higher precision. "Light work", finishing the surface of the workpiece to improve the smoothness

10. The north and south have different names for rough machining. The south is called "open rough". The northeast is called "pulling wasteland".

11, leaching (jin) out to read into leaching (qin) out for example: using blast furnace slag from a steel plant as raw material, the leaching rate of iron and aluminum (qin) is studied by acid leaching method and auxiliary leaching method. In fact, leaching is a commonly used process in wet smelting. Whether it is iron, copper, zinc or gold, it is an extraction process that is useful. Generally speaking, the elderly do not read it (jin).

12, chromium (ge) must be read as Luo (luo) "chromium" is read as "Luo" in basically all fields, whether it is factory masters, university teachers, or steel traders. All college students majoring in materials science, metal science and metallurgy may have such experiences. At first, they felt that the teacher had misread "chromium". Later, after listening to more, they stopped. They often used chromium (ge) and Luo (luo) interactively.

13, cast billet (pi) is often read as cast billet (pei) cast embryo (pei) is a product obtained by casting molten steel in a steelmaking furnace through a continuous casting machine. It is not a finished product and needs to be rolled to become steel. Of course, both cast blank (pi) and cast embryo (pei) are read in mainland China, while cast embryo (pei) is read in Taiwan.

14, rolled (zha) steel should not be read as pressed (ya) steel