CNC Machining and CNC Machine Tools, Technology of mechanical manufacture

Production management encountered problems and asked 5 “why – WHY”

In lean production, often there will be the number 5, such as 5M, 5 “why” and the 5 basic principles and so on. Then, we discuss the 5 “why”, it can quickly find out the real reason of our problems help, in order to solve the problem timely and accurately, prevent the problem continues to worsen, caused more unnecessary losses. Professional Manufacturer of wire edm capabilities

When the problem happens, do you continuously ask 5 “why”? Though it’s easy to say, it’s hard to really do it. Ono Chi mentioned such an example in his TOYOTA production mode.

For example, if a machine doesn’t turn, you have to ask:

(1) “why does the machine stop?”

“Because the overload fuse is broken.”

(2) “why is it overloaded?”

“Because the lubrication of the bearing part is not enough.”

(3) “why is not enough lubrication?”

“Because the lubricating pump does not suck on oil.”

(4) “why don’t you get oil?”

“Because the wear of the oil pump shaft is loose.”

(5) “why is it worn out?”

“Because there is no installation into the filter iron”

After constantly questioning 5 “why”, finally found the root cause of the problem, not installed filters. If there is no root, may simply change the fuse or put on a pump shaft, so the real question is temporary covering, but may soon machine down phenomenon will again there. We can only find the real reason, to solve the problem, in order to prevent the recurrence of similar problems, eliminate hidden dangers. Professional Manufacturer of wire edm capabilities

In fact, when we encounter any problem in our work and life, we can often ask ourselves questions. Through these five “why”, we can find out the causality of the matter or the “real reason” hidden behind it.

If the workshop is only blindly pursuing production, giving up the best time to find problems, solve problems, perhaps, when they are catching up with urgent orders, the machine will appear collective strike phenomenon. At that time. The head of the workshop is bound to repent. The sooner you find the problem, the easier it will be to solve it. Just as a person is ill, if found early, take a few pills may be good, if found late. The virus will continue to invade the body, may have to operate on or endanger the lives of patients. Thus, this enterprise, did not really understand the essence of lean thinking, but a simple understanding of lean production point. There is still a long way to go to really be lean.

In our work and life, once there is a problem, learn to think, if the cause is not thoroughly traced, the solution will not work. Therefore, we need to repeatedly ask five “why.” This is also the basic spirit of lean ideological and scientific attitude.

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