How can the CNC machining service industry achieve sustainable development?

Nowadays, all walks of life are pursuing sustainable development, from Fisheries, Furniture to Energy and Construction.

In fact, from a narrower perspective, the CNC machining service industry has also been pursuing some form of sustainability.
Throughout history, manufacturers have been trying to find ways to make the CNC machining process more efficient and cost-effective, including the continuous development of advanced and sophisticated production machinery, improved cutting tools, and optimization of the entire cutting system. Specific strategies include high-speed machining, high-feed machining, high-performance machining, and digital machining.

A recently proposed sustainable machining plan aims to reduce the consumption of raw materials, energy use and waste generation throughout the product life cycle, so that it can at least reach a level that is balanced with the earth’s carrying capacity. Usually, discussions on sustainability focus on macro-global environmental issues, while ignoring basic elements such as price, cost, customer satisfaction, process knowledge, and reliability. When it comes to the sustainability of machining, true success begins with simple, straightforward steps and analysis.

Economic sustainability includes many aspects (sustainable pricing, invisible costs, customer satisfaction, waste and measurement, compensation and sustainability, reliable processing technology, reduction of energy consumption, and maximum efficiency), but in general In other words, these components are fundamental and straightforward. Most importantly, economic sustainability means that manufacturers need to realistically and accurately assess waste in all aspects of the production process and take reasonable countermeasures.
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01. Sustainable Pricing
Making sustainable prices for goods or services is a challenge that every business faces. The price must be sufficient to cover costs and generate profits, but must attract customers in market competition. If the customer thinks the product is value for money, the manufacturer has room to set a higher price.
On the other hand, if pressure from customers and competitors leads to under pricing, profit margins will be affected. When the price is lower than the production cost, it will cause losses. If competitive pressure makes prices too low, then product designers and processors must find cheaper, faster, and better production methods to cut production costs and maintain sustainable profit margins.

02 Customer Satisfaction   
Customer satisfaction is a key element of sustainable economic development. What customers care about is when the order will be delivered. In the minds of customers, the “delivery time” is calculated from the time the order is placed. And the delivery time is more than just production time. If it takes three weeks to process a part, but two weeks before and after the management activities, the workshop must frankly inform the customer that the delivery time is five weeks. Metal cutting equipment suppliers, including Seco Tools, provide tool inventory management, tool identification and machine tool monitoring systems that enable workshop personnel to track customer operations and maximize workshop capacity to meet delivery targets and maintain customer satisfaction.

03 Reliable processing technology
Sustainable processing is reliable and predictable, and can minimize energy waste. Unreliable processes can lead to rework or scrapping of parts, as well as waste of raw materials, energy and labor due to unqualified products.
For a long time, CNC machining manufacturers have pursued economic sustainability by processing high-quality products with competitive prices to support and maintain their business development.

Heat Treatment of Precision screws

The heat treatment of precision screws refers to a metal thermal processing technology in which the screw is in a solid state through heating, heat preservation and cooling to obtain the expected structure and performance. In many cases, heat treatment is used to increase hardness, strength and increase wear resistance.

The heat treatment process includes 3 steps:
1.Heating: The metal is heated to a specific temperature, at which the structural characteristics will change.
2.Soaking: Keep the metal at a specified temperature until the entire part is evenly heated.
3.Cooling: The metal cools back to room temperature at a specified rate.

Heat treatment is mainly used for steel screws and stainless steel screws. Jiesheng Hardware has rich experience in processing and heat treatment of various alloy steel and carbon steel materials, which can meet your project requirements.
There are four types of heat treatment:
Annealing: is to heat the workpiece to an appropriate temperature, use different holding time according to the material and workpiece size, and then slowly cool it, the purpose is to make the internal structure of the metal reach or close to the equilibrium state, obtain good process performance and use performance, or for further quenching Prepare for organization.
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Normalizing: is to heat the workpiece to a suitable temperature and then cool it in the air. The effect of normalizing is similar to annealing, except that the resulting structure is finer. It is often used to improve the cutting performance of materials, and sometimes used for parts that are not demanding. As the final heat treatment.

Quenching: is the rapid cooling of the workpiece in quenching media such as water, oil, other inorganic salts, and organic aqueous solutions after heating and holding the workpiece. After quenching, the steel parts become hard, but at the same time become brittle. In order to eliminate the brittleness in time, it is generally necessary to temper in time.

Tempering: is to reduce the brittleness of steel parts. The quenched steel parts are kept at an appropriate temperature higher than room temperature but lower than 650°C for a long time before cooling.

Jiesheng Hardware custom manufacturing precision screws for customers in aerospace,medical ,safety ,lighting ,3D printing,electrical, and various other industries. We cooperate with many qualified heat treatment partners. If your project requires heat-treated precision screws, please contact us immediately so that we can provide you with a quote.

What is the difficulty of deep hole machining ?

In the past 20 years of CNC machining experience of Jiesheng Hardware, we often receive some deep hole product consultations. At this time, our engineering team will conduct in-depth communication with customer engineers and designers to discuss the difficulties of deep hole processing. And solutions so that we can assist clients in evaluating each potential design option.

Difficulties of deep hole processing:
1. The tool bar is limited by the aperture, the long diameter of the hole is relatively large, the drill pipe is thin and long, the process system has poor rigidity and low strength, it is prone to vibration during cutting, the drilling is easy to deviate, ripples and taper, which affect the deep hole Straightness and surface roughness;

2. When drilling and reaming, it is difficult to input the cooling lubricant into the cutting area without special equipment, which reduces the tool durability.

3. Chips are not easy to discharge. Due to the depth of the hole and the long path of the chips, it is prone to blockage, causing the drill to break. Therefore, the length and shape of the chips must be controlled, and forced chip removal must be carried out.
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4. Deep hole machining is in a closed or semi-closed state, and the cutting condition of the tool cannot be directly observed. You can only rely on experience to judge whether the cutting process is normal by listening to the sound, watching the cutting, touching the vibration and workpiece temperature, watching the instrument, observing the machine load and pressure gauge, touch vibration and other appearance phenomena

5. In order to ensure the smooth progress of the deep hole in the processing process and achieve the required processing quality, the tool internal (or external) chip removal device, tool guide and support device and high-pressure cooling and lubricating device should be added;

6. The tool has poor heat dissipation conditions, and the cutting heat is not easy to dissipate. In general, 80% of the cutting heat is taken away by the chips during the cutting process, while only 40% of the deep hole drilling. The tool accounts for a large proportion of the cutting heat, spreads slowly, and is easy to overheat. The knife edge temperature can reach 600 degrees, which must be enforced. Cooling method

Therefore, the following points should be paid attention to in deep hole processing:

1) Accurate positioning of the workpiece.
2) The fixture is installed correctly.
3) The blank has no defects such as looseness, pores, blisters, hard spots, etc.
4) Control the size, position accuracy and positioning pin accuracy of the positioning pin hole.
5) Processing drill bit requires center cooling.
6) The drill speed and cutting speed are precisely controlled during secondary drilling.
7) Strictly control the depth of each drill bit.
8) Remove the iron filings from the hole in time.

REACH (SVHC) Reports for CNC Machining

Some Jiesheng hardware customers will request REACH (SVHC) reports when they start their first cooperation. The report provides detailed verification, proving that all the specified requirements of the customer’s customized cnc machining parts have always been met. Many years ago, medical, automotive and aerospace industries customers were most likely to request REACH (SVHC) reports. Today, a wide range of industry customers are demanding them.

REACH is short for REGULATION concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REGULATION concerning the Registration, Evaluation, Authorization and Restriction of Chemicals), established by the European Union and implemented on June 1, 2007. Product supervision system.China manufacturer custom double open ended adjustable wrench AN3-AN20 spanner set hose fitting wrench aluminum AN wrench

REACH regulates a wide range of products, covering almost all products exported to the EU. Products that require SVHC testing include but are not limited to: electronic and electrical products, furniture, automobiles, textiles, toys, clothing and series, cosmetics, etc. Our metal parts also need to undergo SVHC testing.

Jiesheng hardware provides REACH (SVHC) compliance report and SGS material certificate for each production order. These certificates require more resources to complete (cost, time and personnel), so we usually ask the customer to inform the specific application of the ordered product and its performance requirements during the communication process, so that we can make the report as soon as possible.