July 2019 – Page 11 – CNC Machining & Turning, Milling, Metal parts

CNC lathe processing， four language strategies help you to order from customers

The level of language charm is an important factor in determining your sales image. No matter how strong a salesman’s actual working ability is, once the language expression ability is not enough, the customer’s evaluation of his ability can not be very high. What’s more, salesmen mainly eat by mouth, so a good salesman must have an excellent eloquence. The following edition will share four skills to improve the sales language, for reference! uuuuuuuuuuu

If a salesman wants to make the product introduction attractive, to stimulate the interest of customers and to stimulate their desire to buy, he must pay attention to the art of language. Show customers your language charm. Attention should be paid to the following points:

1. Introduce in a language that the customer understands

Popular and understandable language is more acceptable to the public. Therefore, you should use more popular sentences in language use and make your customers understand. Salesman’s introduction of products and trading conditions must be simple and clear, and the way of expression must be straightforward.

If the expression is not clear and the language is not clear, there may be communication barriers, which will affect the transaction. Salesmen should also use the unique language and conversation style of each customer.

Therefore, the first thing a salesman should do is to introduce his products in the language that the customer understands.

2. Move customers with vivid descriptions

“Speaking must impress the customer’s heart, not the customer’s head.” Why do you say that? Because the customer’s wallet is nearest to his heart and touches his heart, it touches his wallet.

And the more effective way to impress customers is to depict them visually. It’s like when I went shopping with my wife, the lady who bought clothes said a word to my wife, so that she didn’t hesitate to take out her wallet. I can’t help it.

What did the salesman say to my wife so magically? Simply put on this dress can make you beautiful. “Perfect your beauty,” one word moved my wife. This woman shopkeeper is really good at talking and doing business.

In the customer’s mind, it is not the customer taking care of her business, but the beauty of her customers. Although this is also a compliment, it sounds totally different.

3. Introducing in a Storytelling Way

Everyone likes to listen to stories, so if we use storytelling to introduce our products, we can get good results.

Every commodity has its own interesting topics: its invention, production process, the benefits of products to customers, and so on. Salesmen can choose vivid and interesting parts and string them into a cheerful and moving story as an effective way to sell.

So sales guru Paul Meyer said, “In this way, you can cater to customers, attract customers’attention, make customers have confidence and interest, and then achieve the purpose of sales without any difficulty.”

4. Explaining in Humorous Language

Everyone likes to deal with people who are humorous and funny. Sales is the same. Humor is even the golden key to successful sales. It has a strong appeal and attraction. It can quickly open the door of the customer’s mind and make the customer feel good about you, goods or services after a heartfelt laugh, thus inducing purchase motivation and facilitating the rapid completion of transactions.

Therefore, the attraction of a person with linguistic charm to customers is simply unthinkable. Excellent salesman is a person who knows how to integrate the art of language into commodity sales.

It can be said that a successful salesman should cultivate his language charm. With the charm of language, there is the possibility of success.

Design Principles of metal Stamping Parts

(1) The stamping parts designed must meet the requirements of product usage and technical performance, and can be easily assembled and repaired.

(2) The stamping parts designed must be conducive to improving the utilization rate of metal materials, reducing the variety and specifications of materials, and reducing the consumption of materials as much as possible. In the case of permissible use of low-cost materials, as far as possible to make parts without waste and less waste blanking.

(3) The stamping parts designed must be simple in shape and reasonable in structure, so as to simplify the die structure and the number of working procedures, that is, to complete the whole part processing with the least and simplest stamping process, reduce the re-processing by other methods, and be conducive to stamping operation, facilitate the organization of mechanized and automated production, and improve labor productivity.

_The stamping parts designed in this paper, in order to ensure the normal use of the stamping parts, try to make the size accuracy and surface roughness level requirements lower, and is conducive to product interchange, reduce waste products and ensure product quality stability.

(5) The stamping parts designed should be conducive to the use of existing equipment, process equipment and process flow as far as possible, and to the extension of the service life of the die.

Introduction of Hardware Stamping Parts

Hardware: Steel or some non-ferrous metals processed parts, processing means: cold/hot stamping, extrusion, rolling, welding, cutting and so on, including some other processes, a relatively broad definition.

Stamping parts: Hardware processing in the most used, refers to at room temperature, steel/non-ferrous metals and other sheet metal dies, by the press to provide the processing pressure required to form a specified shape.

Including some electronic devices, automotive accessories, decorative materials and so on. We usually say stamping parts refer to cold stamping parts. For example, a piece of iron plate, if you want to turn it into a fast-food plate, you must first design a set of dies. The working surface of the dies is the shape of the plate. Pressing the iron plate with the dies will become the plate you want. This is cold stamping, that is, stamping the hardware materials directly with the dies.

Electroplating Technology and Testing Standard of Hardware

I wonder if you are familiar with the plating process and quality testing standards of hardware. Today, Xiaobian and you all come to learn about it.

The traditional plating process of metal products can be roughly described by the following processes:

Mounting degreasing, washing rust removal, washing activation, washing electroplating washing drying inspection packaging.

New Technology of Replacing Electroplating

Common plating processes include galvanizing, copper plating, nickel plating, gold plating, silver plating, tin plating, chromium plating, rhodium plating, palladium plating and alloy plating. There are various kinds of plating, either single-layer plating or multi-layer plating: single metal plating (as mentioned above), alloy plating, composite plating and electroless plating. Vacuum plating and ion sputtering are also called electroplating. Such as aluminium oxidation, blackening/bluing, chemical polishing, electrochemical polishing, passivation and so on, also fall into the category of electroplating.

New Technology of Replacing Electroplating

The inspection of electroplated hardware should be based on appearance, corrosion resistance, temperature resistance, adhesion force, size and other aspects. If one or more of the products are not up to standard, it shows that there are slight or serious defects in this product. According to the objective data, many products produced by electroplating process have slight defects. The operation process is mainly affected by temperature, current, plating solution and other factors. The quality of some hardware products is not very optimistic.

Trend of Sheet Metal Processing Technology

With the continuous progress of technology, China’s sheet metal processing industry has undergone tremendous changes, but also changed the face of society. Now the development of sheet metal processing industry makes more and more furniture of plastic, stainless steel and other materials, and people are more willing to buy such daily necessities.

Sheet metal processing is actually a comprehensive cold processing technology for sheet metal, including shearing, punching, cutting, composite, bending, welding, riveting, splicing, forming and so on. Its main material is sheet metal, through shearing, bending edge, bending forming, welding, riveting and other processes to produce raw materials into a product, which we need to use in daily life, such as iron barrels, oil barrels, cabinets, chassis and so on.

In sheet metal processing technology, besides numerical control technology, there are stamping and so on. Stamping process is an important part of sheet metal processing. CNC punch can replace the processing capacity of the past three punches, not only ensure the accuracy of products, but also greatly improve the efficiency of processing, and also save the cost of equipment for enterprises and reduce production costs.

These are some changes in sheet metal processing technology, from the traditional processing technology to the direction of numerical control processing technology, I believe that in the near future, our sheet metal processing technology will be on a higher level.

Hardware inspection

Rockwell hardness tester is used for hardness testing of metal stamping parts. Small stamping parts with complex shapes can be used to test the plane is very small and can not be tested on ordinary desktop Rockwell hardness tester.

Stamping process includes blanking, bending, drawing, forming, finishing and other processes. Stamping materials are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal strip materials, such as carbon steel plate, alloy steel plate, spring steel plate, galvanized plate, tin plate, stainless steel plate, copper and copper alloy plate, aluminum and aluminum alloy plate, etc.

PHP series portable surface Rockwell hardness tester is very suitable for testing the hardness of these stamping parts. Alloy stamping parts are the most commonly used parts in the field of metal processing and mechanical manufacturing. Stamping parts processing is a method of separating or forming metal strips by means of dies. It has a wide range of applications.

The main purpose of hardness testing of stamping materials is to determine whether the annealing degree of the purchased metal sheet is suitable for the subsequent stamping process. Different kinds of stamping process require different hardness levels of sheet metal. Aluminum alloy sheet used for stamping can be tested by Wechsler hardness tester. When the thickness of material is more than 13mm, it can be changed to Barkholder hardness tester. Pure aluminium or low hardness aluminium alloy sheet should be used Barkholder hardness tester.

In the stamping industry, stamping is sometimes called sheet metal forming, but it is slightly different. The so-called sheet metal forming refers to the forming method of using sheet metal, thin-walled tube, thin section as raw materials for plastic processing, which is collectively called sheet metal forming. At this time, the deformation in the direction of thick plate is generally not taken into account.

Matters needing attention in the selection of gaskets

1. Requirements for temperature and chemical resistance

Make sure that the gaskets you ordered can withstand operating temperature and medium resistance. Check the chemical compatibility of metal and filler to sealing medium. According to general practice, the metal used to make metal wound gaskets and metal coated gaskets should be similar to flanged materials.

The compressibility of flexible graphite makes it a good filler for making metal gaskets. Flexible graphite can not be used as a strong oxidant such as nitric acid and sulphuric acid, but it can be used at 450 C. PTFE fillers can provide excellent chemical resistance below 260 degree C. According to ASME B16.20, when PTFE is used as filling material, inner ring should be used to prevent radial instability of winding part.

2, work pressure

Working pressure has a direct impact on the design and selection of metal gaskets. Higher pressure may cause gaskets to blow out, and low pressure applications require gaskets designed to seal under low bolt loads.

Forging characteristics

From the point of view of safety, technology and labor protection, the characteristics of forging workshop are as follows:

(1) Forging production is carried out in the state of hot metal (such as low carbon steel forging temperature range between 750-1250 C), due to a large number of manual work, a little carelessness may cause burns.

(2) Heating furnaces and hot ingots, blanks and forgings in forging workshops continuously emit a large amount of radiation heat (forgings still have a fairly high temperature at the end of forging). Workers are often exposed to heat radiation.

(3) The smoke and dust produced by the heating furnace in the forging workshop are discharged into the air of the workshop during the combustion process, which not only affects the working environment, but also reduces the visibility of the workshop (especially for the heating furnace burning solid fuel), and may also cause industrial accidents.

(4) The equipment used in forging production, such as air hammer, steam hammer, friction press, etc., emits impact force when working; when the equipment is subjected to such impact load, it is prone to sudden damage (such as the sudden breaking of the piston rod of the forging hammer), resulting in serious injury accidents. Press (such as hydraulic press, crank hot die forging press, flat forging machine, precision press), shear machine and so on, although the impact is small, but the sudden damage of equipment also occurs from time to time. Operators often fail to take precautions and may cause accidents at work.

(5) Forging equipment plays a great role in the work, such as crank press, stretch forging press and hydraulic press. Although their working conditions are relatively stable, the power of their working parts is very large (for example, 12 000 t forging hydraulic press has been manufactured and used in our country). It is a common 100-150 t pressure machine, which emits tremendous force. If there are errors in the installation and adjustment of the die or slightly incorrect operation, most of the force is not applied to the work, but to the parts of the die, tool or equipment itself, which may cause damage to the machine parts and other serious settings. Prepare for or cause personal accidents.

(6) There are many kinds of forgers’tools and auxiliary tools, especially hand forging and free forging tools, clamps and so on. These tools are put together in the workplace. In the work, tools change very frequently, and storage is often messy, which will inevitably increase the difficulty of checking these tools. When a tool is needed in forging and can not be found quickly, sometimes similar tools will be used, which often results in accidents at work.

(7) Because of the noise and vibration of forging workshop equipment in operation, the working place is noisy and harsh. It affects people’s hearing and nervous system and distracts their attention, thus increasing the possibility of accidents.

Attribute Classification of CNC Tools

According to the cutter structure, it can be divided into:

Integral type: The cutting tool is made of one blank, and it is not separated.

Welding type: using welding method to connect, dividing tool head and tool rod;

Machine clamp type: Machine clamp type can be divided into two types: non-indexable and indexable; usually CNC tools are machine clamp type!

Special type: such as composite cutter, shock absorber cutter, etc.

According to the materials used to make cutting tools, they can be divided into:

High speed steel cutting tools;

Cemented carbide cutting tools;

Diamond cutting tools;

Other material cutters, such as cubic boron nitride cutters, ceramic cutters, etc.

Cutting technology can be divided into

Turning tools, including cylindrical, internal hole, thread, cutting, grooving tools and other;

Drilling tools, including drill bits, reamers, taps, etc.

Boring tools;

Milling tools, etc.

What are the problems in the dyeing process of aluminium alloy

In the process of aluminium alloy surface dyeing, there are often many problems, such as not dyeing or chromatic aberration, and so on. And a problem is always caused by more than one reason. If we want to list them one by one, it is estimated that a book may not be comprehensive. We can take a look at some of the problems and general solutions.

The first is the cause of color difference and shade and the general solution.

1. Dyes are not dissolved properly, or insoluble dyes float, which is easy to produce chromatic aberration. The solution is to improve dye dissolution. It is suggested to select better dye reagents, such as Hsjt Red 120 and other dyeing reagents commonly used in the market.

2. The thickness of oxide film is uneven. The possible reason is the uneven temperature and concentration of the anodic oxidation tank liquid. The solution is to mix the tank liquid with compressed air to solve this kind of problem.

3. The dyeing speed is too fast. The bottom of the workpiece enters the dyeing solution first and leaves the dyeing solution finally, so the bottom is the easiest to dye deeply. The solution is to dilute the dyes and prolong the dyeing time properly. The dyeing speed can also be controlled by ht429 dyeing inhibitor.

4. Dyes are not dissolved properly, or insoluble dyes float, which is easy to produce chromatic aberration. The solution is to improve dye dissolution.

Then, we can look at the reasons and solutions for the staining of aluminium alloy. After all, the colour is not dyed, let alone other things.

1. The oxidation temperature of aluminium profile is too low, resulting in dense skin film. The solution is to increase the oxidation temperature appropriately.

2. The conductivity of aluminium profile is poor. This is due to poor contact between positive copper rod or negative cathode lead plate. The solution should pay attention to cleaning positive copper rod and negative lead plate, so as to ensure good conductivity.

3. The thickness of positive oxide film is insufficient. The solution checks whether the anodic oxidation process is correct or not, to see whether the temperature, voltage, conductivity and other factors are stable. If there are abnormalities, the specifications should be adjusted according to the corresponding methods. No abnormalities can be found, and the oxidation time can be prolonged appropriately to ensure that the film thickness reaches the standard.

4. After oxidation, the workpiece is placed in the tank for too long. It is suggested that dyeing should be done in time. If this happens, the workpiece can be dyed in positive oxidation tank or nitric acid neutralization tank after proper activation treatment. The effect will be better.

In fact, there are more problems in aluminium alloy dyeing. There are also spots, streams, hair and flowers, and the reasons for their formation are various. The author will elaborate one by one next time.