First talk about a problem, before I sent an article about the lack of mechanical talent, this article is based on the actual situation, on the matter, the lack of people in this industry is a fact, there is a friend message said: "Persuade people to learn machine, day strike lightning." To clarify, I have never advised anyone to learn mechanics, and I will repeat my exact words here: "If someone is interested in this industry, or thinks this industry has a future, or plans to let their children enter this industry, but don't want them to enter the industry in the initial period of time, they can come to me, I specialize in mechanical design training, but also do some mechanical design outsourcing services."
You can read my previous article, I am to help people who need to enter this industry, rather than exaggerating the advantages and benefits of this industry, so as to pull people who do not want to come to this industry into this industry, if you have no understanding of this industry and do not want to enter this industry, please ignore my article, because this is a professional thing. It is not for housewives, students, police, doctors and other non-professionals.
To get to the point, whether it is mold manufacturing, or mechanical manufacturing, are inseparable from mechanical processing, we refer to machining, that is, from the types of processing is very many, common lathes, grinding machines, milling machines, drilling machines, etc., there are some uncommon, such as planer, boring machine, slopping machine, etc., today we want to talk about
Wire cutting, belongs to a common one.
Wire cutting, as the name suggests, is through copper or molybdenum wire (usually called "silk", because the line is usually very thin). After the power supply, the moment of electric spark generated by the current, to reach a higher temperature, so that the metal near the "wire" area melt off, corrosion off, so that the metal fracture of a processing process, this technology is less than the 1960s, the former Soviet Union invented, and applied to the industrial aspects of the child is from our country, his predecessor is the electric spark machine.
Let's talk about the type of wire cutting, generally speaking, we put it is a wire walking machine, wire walking machine is generally divided into fast wire, slow wire and medium wire, their biggest difference is that the speed of cutting materials is not the same, another can be the use of "silk" is not the same.
The general fast wire or medium wire is mostly used is molybdenum wire, slow wire most of the use is copper wire, the two kinds of wire conductivity will be a little different, cutting out the accuracy and surface roughness are not the same, in general, slow wire cutting from the workpiece cutting position to go several times, the first time to cut a seam, but the end is not cut, You can do it again or several times, called cutting one repair three or cutting two repair five, we first need to thread before wire cutting, will first use the discharge to punch a thread hole.
Wire cutting this process generally needs to be cut through, can not be used to cut blind holes, can not be used to cut pits, which is one of the conditions, the second condition is that the wire cutting hole must be perpendicular to the cutting surface, there is a little Angle or can be cut, but you want to wire cutting Angle larger horn, you need to make some corresponding adjustments. The Angle is too large to use the wire cutting process to process.
Another problem is that the wire cutting inside the "wire" will wear, in the process of processing, if the current is too large or improper operation, it is easy to break the wire, the wire cutting machine is generally equipped with a computer, you can directly input the outline we draw in the cad diagram into the machine side, set the path can be, very simple and convenient.
