The 31st section of the game is completely scrapped
Niu Xiaobai replied: "I think the implementation of the '5S on-site management method' can improve Fuma's quality, increase productivity, reduce costs, ensure on-time delivery and safe production, and maintain and continuously enhance the high morale of employees.
.”
"Manager Niu, your answer is too general, it's like you didn't say anything." Chen Wanshi didn't buy Niu Xiaobai's general answer.
"Okay! Then I will analyze it for you one by one. First of all, through sorting, reorganizing, cleaning and other activities, items can be placed at fixed points, volumes, and quantities. The workplace can be kept spacious and bright, and the passages can be kept at all times.
It is smooth and there are no things placed on the ground that should not be placed. These all show that the machine shop has become orderly, and the occurrence of accidents will naturally be greatly reduced accordingly. Of course, the safety of employees will be guaranteed.
.Wanshi, you also know that safety is more important than anything else, and this cannot be bought with money;
"The second point is that a neat and tidy working environment can easily attract customers and make them feel comfortable; at the same time, due to word-of-mouth spread, Fuma Company will become a model for other companies to learn from, which can greatly improve Fuma Company's
Prestige. Invisibly, the '5S on-site management method' promotes Fuma Company to customers;
"The third point is that by implementing the '5S on-site management method', it can greatly reduce the waste of personnel, equipment, production space, time, etc., thereby reducing production costs. These benefits can be directly reflected in Fuma Company
financial data;
"The fourth point is to achieve standardized management by implementing a series of activities such as sorting, rectifying, sweeping, and cleaning. The management of the machine shop will become clear at a glance, making abnormal phenomena obvious, and personnel, equipment, and time will not be wasted.
.The production in the machine shop can accordingly become very smooth, the production efficiency will inevitably be improved, the operation cycle will be shortened accordingly, and the delivery date will be ensured.
“The fifth point is that through rectification activities, employees can get the items they need immediately when they need them, which can greatly reduce the time of searching for items; all kinds of materials and tools are smoothly flowed and executed to the maximum extent.
Minimum inventory quantity management can also effectively improve the turnover rate of parts in the warehouse;
"The sixth point is that excellent quality comes from an excellent working environment. Only by constantly purifying the working environment through regular cleaning, inspections and inspections can we effectively avoid contaminating items or damaging machinery and maintain high efficiency of equipment.
, improve production quality;
"The seventh point is that with a good working environment and atmosphere, coupled with well-educated working partners, employees can concentrate and do their jobs conscientiously, which will inevitably greatly improve efficiency. Think about it,
If employees are always in a messy and disorderly working environment, their emotions will inevitably be affected. If their emotions are not high and their motivation is not high, where will the economic benefits come from? Therefore, the implementation of the '5S on-site management method' will improve work efficiency.
One of the effective ways;
"Also, I think the '5S on-site management method' can significantly improve the mental outlook of employees and make the organization radiate a strong vitality. Employees have dignity and sense of accomplishment, are dedicated to their work, and drive the improvement of ideology
…”
Niu Xiaobai talked endlessly about the benefits and functions of implementing the "5S on-site management method". 1.
Although Chen Wanshi, who was listening attentively, did not express her opinion directly, it could be seen from the subtle smile on her face that she was very satisfied with Niu Xiaobai's answers.
…
While Niu Xiaobai and Chen Wanshi were chatting, production engineer Lu Minghui and planner Jiang Hui hurriedly walked up to them. Jiang Hui looked at Chen Wanshi and said to Niu Xiaobai nervously: "Manager Niu,
It’s not good…”
With his goddess standing beside him, Niu Xiaobai was in a good mood. He smiled and asked: "Xiaohui, what happened again? Don't worry, this life is like an electrocardiogram. If you want it to be smooth sailing without ups and downs,
Unless the person dies."
"Those four samples from FG Company have all been scrapped," Jiang Hui replied.
"How is this possible? All of them were scrapped? What happened?" Niu Xiaobai couldn't believe his ears. He was so surprised that his jaw almost dropped. "Didn't Engineer Tang say that these products are not difficult at all?"
And I repeatedly emphasized at the mobilization meeting attended by all employees that these samples must be made into the best of the best, and everyone must take them seriously! How could they all be scrapped?" Niu Xiaobai couldn't help crying in his heart:
God, I will never call you "grandpa" again. You don't love my grandson at all!
Jiang Hui did not answer Niu Xiaobai's question, but looked at Lu Minghui with helpless eyes.
"Let me explain this matter." Lu Minghui brushed his long hair, supported his thick glasses frame, and said slowly: "I think there is something wrong with the process document written by Tang Cheng.
The root of the problem was laid in the cutting step of the sawing machine."
Lu Minghui unfolded the drawing, pointed to the length dimensions on it and said to Niu Xiaobai: "Manager Niu, please look here. The finished stepped shaft is 50 mm long. Engineer Tang requires that the sawing machine process be used to cut 55 mm. We know that the sawing machine
It is generally necessary to leave a machining allowance of 2 to 5 millimeters for subsequent processes when blanking. To be on the safe side, Mr. Tang directly took the maximum value, which was originally no problem, but..."
Lu Minghui brushed his hair again and continued: "But Mr. Tang forgot to check the incoming raw materials. For this special raw material, the length of a bar is generally 220 mm; a bar must be cut into 4
section, three sawing machine incisions with a width of 3 mm must be made in the middle. So in fact, the total length of the available material is only 211 mm, and the theoretical length to be apportioned to each product is only 52.75 mm at best. Therefore, the sawing machine operator presses
When cutting 55 mm, the length of the first three products is fine, but when the fourth product is cut off, only 46 mm is left, which simply cannot meet the product length requirements and can only be scrapped on the spot.”
"Because of such a simple mathematical problem, a product was scrapped?" Niu Xiaobai asked.
"Yes. In fact, for small parts as short as fingers, in order to ensure that the cutting section is flat and not skewed, a lathe should be used to cut the parts. A machining allowance of 2 millimeters is enough for subsequent processes." Lu Minghui
Added another sentence.
"Tang Cheng, is he taking it too much for granted? Why didn't he go on-site to investigate the condition of the raw materials?" Chen Wanshi asked with a straight face.
"This soup maker is so tender! I need to learn more in the future, haha." Lu Minghui said with disdain.
"At once
Counting that one piece was scrapped during the blanking process, what about the three products left? Didn’t Mr. Tang say that these products pose no challenge to our production process? Why are they scrapped?" Niu Xiaobai asked hurriedly.
After listening to Niu Xiaobai's question, Lu Minghui's long, thin face was filled with an expression of disdain. He adjusted his glasses frame with his hand and continued to say slowly: "Except for the problem with the preparation of the cutting process documents, the product
The final surface finishing process file was also wrong, and the problem lies in the surface roughness."
Surface roughness is generally caused by the machining method used and other factors, such as the friction between the tool and the part surface during the machining process, the plastic deformation of the surface metal during chip separation, and high-frequency vibration in the process system. Due to
Depending on the processing method and workpiece material, the depth, density, shape and texture of the marks left on the processed surface will be different.
Looking at the puzzled looks in Niu Xiaobai and Chen Wanshi's eyes, Lu Minghui further explained: "In our machining industry, there is a relatively vague but very common concept. It is generally believed that the machining accuracy of a cylindrical grinder is 0.001 mm, and that of a lathe
The machining accuracy is 0.01 mm. According to the tolerances marked on the customer's drawings, Tang Gong naturally designated the cylindrical grinder as the final surface treatment process of the product. But he missed one detail. The customer required that the surface roughness Ra of the product must be controlled.
Between 3.2 and 6.3, and the roughness Ra processed by the cylindrical grinder is generally between 0.8 and 0.2. After the three samples we made were processed by the cylindrical grinder, the roughness Ra did not fall within the customer's requirements at all.
Within the range. According to my understanding of this drawing, the final surface treatment process should be the finishing process, so that the surface roughness can be controlled within this range."
Niu Xiaobai knew that surface roughness is generally determined by Ra. Generally speaking, the smaller the number, the better. The smaller the number, the higher the roughness requirement. He asked in confusion: "We make the surface roughness higher than the customer's requirements."
Even better, isn’t this good news for them?”
Lu Minghui explained with a smile: "Haha, no! Surface roughness is closely related to the matching properties of mechanical parts, wear resistance, fatigue strength, contact stiffness, vibration and noise, etc. It also has a certain influence on the service life and reliability of mechanical products.
has an important influence. In specific situations, there are specific requirements for the surface roughness of parts. Since the customer has put it so clearly in the drawing, there must be their reasons - although I also think that this drawing
The dimensional tolerances and surface roughness are marked a bit strangely.”
Hearing what Lu Minghui said, Niu Xiaobai's heart skipped a beat: Is this what Dong Xiaoya thought was "troublesome"? He hurriedly asked: "Are the requirements put forward by the customer in the drawing reasonable?
Can we have an in-depth discussion with the client?”
Chen Wanshi shook her head and said: "Never quarrel with your customers, because if you fail to win the argument, you will lose the sales order, and if you win the argument, you will also lose the sales order - the result is the same."
"Wanshi, I don't want to quarrel with the customer, I just want our engineers to have an in-depth communication with their engineers about technical issues, and to understand more specifically why they make these strange requests. Also, those 3
Are they willing to accept samples whose surface roughness exceeds specifications?"