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November 20th, 2024

What is Precision Cutting Machining? | A Quick 3-Minutes Explanation: Precision machining refers to machining technology used to manufacture parts and products with extremely high accuracy. This technology is used to achieve dimensional tolerances of ±0.001mm or less and smooth surface finishes, which are not attainable with standard machining methods. Precision machining plays a crucial role in fields requiring high accuracy, such as aerospace, medical equipment, automotive, and electronics. Typical methods include cutting machining (using lathes and milling machines), grinding machining (finished with grinding wheels), and electrical discharge machining (using electric sparks). In recent years, digital technologies such as CNC (computer numerical control) and 3D printing have been applied to precision machining. The defining feature of precision machining is its ability to accurately reproduce shapes and dimensions as designed, enabling improved assembly precision and product performance. Achieving high-precision machining requires advanced machinery, appropriate material selection, and high technical expertise. Precision machining involves manufacturing technology that operates within extremely fine dimensions and tolerances. There are two main categories: “precision machining” and “ultra-precision machining,” classified based on the “fineness” of the process. ・Precision machining: Achieves micrometer-scale precision, allowing for machining accuracy up to 1/1000 mm. ・Ultra-precision machining: Achieves nanometer-scale precision, allowing for machining accuracy up to 1/1000 μm. The applications of ultra-precision machining are limited, primarily in the semiconductor and optical fields. For general industrial products, precision machining is more commonly used. Furthermore, precision machining requires advanced technologies, production processes, and quality management. It is also necessary to consider the material’s properties and its resistance to environmental changes after production. Precision machining is essential in various fields such as aerospace, medical equipment, electronics, and automotive industries. Below are typical scenarios where precision machining is required: ◆Electronics Manufacturing Electronics have become increasingly miniaturized in recent years, with intricate components and circuits. Components used in essential devices such as smartphones, tablets, and wearable devices require precision machining to maintain high reliability and performance. ◆Automotive Industry Many automotive parts are manufactured using precision machining. Components such as engine parts, brake systems, airbags, and fuel injection systems require high precision in manufacturing and assembly to ensure safety, fuel efficiency, and overall performance. ◆Mechanical Engineering In mechanical engineering, high-precision operation and manufacturing of intricate components are essential. Precision design and machining are critical for maximizing the performance of machinery such as machine tools, robots, and industrial machines. High-precision machining technology is also indispensable for developing precision measurement devices and testing equipment used in research institutions and laboratories. ...

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November 01st, 2024

What is FRP Resin? A Simple Guide to Its Characteristics and Applications for beginners: FRP stands for Fiber-Reinforced Plastics, which is a collective term for plastics 【P】 that are reinforced 【R】 with fiber 【F】. It is made by adding strong fibers like glass fiber to lightweight and flexible plastic. By adding this “strong fiber,” it compensates for the weakness of plastic and becomes a durable, long-lasting material. Although plastic itself is light and easy to use, it lacks the strength needed for use in parts of buildings and vehicles. By mixing in fibers such as glass fiber, the plastic is reinforced, creating FRP. Because FRP is light, inexpensive, and long-lasting, it is widely used in everyday applications such as airplanes, cars, and home equipment. FRP (Fiber Reinforced Plastic) is a composite material that combines a resin base with reinforcing fibers, offering greater strength and durability than standard plastic. Due to this structure, it is widely used across various industries. With its lightweight and high-strength properties, along with its durability and corrosion resistance, FRP plays a significant role in fields such as automotive, construction, aerospace, and marine. FRP is composed of a resin component known as the matrix and reinforcing fibers like glass or carbon fibers. The matrix protects the fibers from external impacts and chemical influences and also helps in transferring forces between the fibers. The reinforcing fibers, on the other hand, mainly improve the tensile strength and elastic modulus, thereby enhancing the strength of the composite as a whole. The interplay of these two components makes FRP a material with high durability and light weight. The manufacturing process of FRP proceeds as follows: Fiber Preparation The fibers, which determine the strength of FRP, include glass fiber, carbon fiber, and aramid fiber. These fibers are shaped into yarn or sheets, forming the framework of the product. Glass fiber, with its high electrical insulation and relatively low cost, is widely used in electrical equipment and construction. Carbon fiber, possessing exceptionally high tensile strength and lightweight properties, is highly valued in the aerospace and automotive industries. Resin Impregnation The prepared fibers are impregnated with resin (such as epoxy or vinyl ester). The resin, acting as the matrix, covers the fibers and evenly distributes forces applied to the fibers. Additionally, the resin protects the fibers and enhances durability. Depending on the application, resins with suitable heat resistance and corrosion resistance are selected. Epoxy resin, known for its strength, heat resistance, and chemical resistance, is often used ...

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October 15th, 2024

The Ultimate Guide to Choosing and Using Rivets for Various Applications: Rivets are essential fasteners for firmly joining various materials. They are used in a wide range of fields, from aircraft and automobiles to everyday furniture and electronic devices. Choosing and using the right type of rivet can greatly affect the quality and durability of a product, so it’s important to select a rivet suited to the intended application. This article explains the different types of common rivets, their unique characteristics, how to use them, and tips for selection. It serves as a guide for those using rivets for the first time or struggling with selection, so please refer to it. Rivets are mechanical fasteners used to firmly join two or more materials. The basic structure of a rivet consists of a head and a shank, which is inserted into a pre-drilled hole and then plastically deformed at the end to secure the parts. This process is called “setting”, and it is done with a hammer or special tool. As mentioned above, rivets secure two or more materials by inserting and setting them from one side, fixing the materials without using nuts or bolts. They are widely used in industrial fields such as automotive, aerospace, and construction. Compared to other fasteners, rivets provide strong tensile and shear resistance and allow stable fastening over the long term. Rivets are particularly effective in narrow spaces or locations that only allow work from one side, where nuts and bolts may not be suitable. They are frequently used in areas requiring durability and safety, such as car body parts and aircraft exterior panels. Additionally, rivets play an important role in various fields such as furniture, home appliances, and even clothing and bags. Different types of rivets are selected depending on the environment and application, showing their effects in the right places. Advantages Strong Holding Power: Rivets have strong tensile and shear strength and are used where secure fastening is required. They are especially suitable for situations where long-term stable joints are needed. Single-Sided Operation: Rivets allow work from only one side, making them easy to use in tight spaces or areas with limited access. Blind rivets, in particular, are specialized for single-sided work and are conveniently used in many scenarios. Cost-Effective: Rivets provide high durability at a low cost. They come in various sizes and materials, allowing the selection of the optimal rivet for the application. Disadvantages Difficulty in Removal: Once set, rivets require destruction ...

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October 01st, 2024

The development and history of screws: from the Industrial Revolution to the present: Screws are essential components used in various fields, from our everyday lives to advanced industries. Their origin traces back to ancient Greece, and with the Industrial Revolution, mass production became possible, establishing screws as a foundation for industrial products. Although screws may appear as simple fasteners, their technology has evolved over time, and they are now used in highly advanced fields such as precision instruments and aerospace industries. In this article, we trace the history and evolution of screws, exploring how screws have supported the foundations of industry and played a crucial role in future technological innovations. From ancient inventions to the Industrial Revolution and the modern smart screw, let’s uncover the untold story of how screws have contributed to technological advancements. The history of screws dates back to the 4th century BCE. During this period, the Greek mathematician and inventor Archimedes invented a water-raising device known as the “Archimedean Screw,” marking one of the earliest records of screw technology. This device had a large helical screw inside a cylindrical machine, used to efficiently lift water. It was widely used in irrigation and mine drainage systems, bringing innovation to agriculture and civil engineering of the time. This invention established the basic principle of converting rotational motion to linear movement, greatly contributing to the later development of industrial technology. Additionally, ancient scholars such as Eustathius pointed out that Archytas and Apollonius of Perga may have also invented the principles of screws, highlighting the importance of screw technology at the time. Screws were more than tools for fastening; they were innovative technology that contributed to the mechanical engineering and societal infrastructure of the time. The Archimedean Screw’s design was adopted even in later times, passed down as a technology still in use today. This marked the first crucial step in screw history, laying the groundwork for future technological advancements. Screw technology established its foundation during ancient Greece, yet continued to advance through the Middle Ages. However, a major turning point in innovation arrived during the Renaissance. This period saw rapid advancements in arts and science, particularly in Italy, where many engineers and inventors emerged. Among them, the renowned genius Leonardo da Vinci made notable contributions by further expanding the applications of screws. Da Vinci left sketches of compressors and screw-cutting machines using screws, as well as taps and dies, which later became indispensable tools in manufacturing industrial products. In particular, the invention ...

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September 13th, 2024

Introducing tapes that can adhere to oil surfaces and functional adhesive tapes!: This time, we introduce the ‘Tape that can be applied to oily surfaces‘ for workplaces dealing with oil. This new product, launched by Rinrei Tape Co., Ltd. in August 2024, works with both plant and mineral oils, can be torn by hand, and can be written on—a magical tape. In manufacturing, oil is used on various parts and surfaces, but even in such environments, this special tape can adhere without peeling off when applied properly. Additionally, we introduce the clear anti-slip tape from the same manufacturer! This adhesive tape features a special adhesive that absorbs oil. It utilizes a strong adhesive design and a thick laminated high-strength substrate, eliminating the need for large-scale degreasing operations. In locations where oil is used, it is essential for tasks like marking lines or writing down NG spots on products coated with anti-rust oil, as well as for memo-taking. It is sure to become indispensable for production lines across various manufacturers. Can be applied directly to oily surfaces Exhibits strong adhesive power on surfaces with oil (compatible with both mineral and plant oils). No need for extensive degreasing work. *However, it is recommended to clean the surface beforehand if the floor is dirty. Easy to handle Tears by hand, with no release paper, improving work efficiency and reducing waste. Versatile for different scenarios Available in two colors (white and yellow) to meet various needs, such as fixing metal parts or using as line tape. Typically, adhesive tapes cannot be used on oily surfaces without thorough degreasing. Simply wiping oil with a cloth is not enough, and only after using a dedicated cleaner is the surface degreased. Additionally, there are cases where degreasing is prohibited, such as on metal processing products, resulting in many situations where adhesive tape cannot be used. The “Oil Surface Tape #6001L” released this time is a functional tape that can be used directly on oily surfaces without the need for degreasing. The adhesive used in this product is a special one that absorbs oil, and its adhesive strength develops within seconds after application. This product is also designed to be hand-torn straight, without the need for scissors or a cutter. Moreover, it is release-paper-free, ensuring no additional waste in the workplace. By using this product, it greatly contributes to improving work efficiency for those dealing with oily surfaces. ＜Detailed Catalog＞ *Only Japanese Ver. Click here for the catalog >> ＜Product ...

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September 06th, 2024

Five points to remember when selecting a machine screw and the characteristics of each type: Small screws are essential components used in a wide range of applications, from industrial to household use. Although small in appearance, their functionality and performance vary greatly depending on their use and material. This article explains the types and selection process of small screws, and introduces five tips to avoid mistakes. Choose the optimal small screw for your application and prevent problems in advance. Small screws are indispensable components in modern industrial products and everyday devices. Since they are not limited to a specific use, they are employed in various fields, such as automobiles, home appliances, and electronic devices, playing a crucial role in securely fixing parts together. The selection of small screws, depending on their shape and material, significantly influences the reliability and safety of machinery and devices. Choosing the appropriate small screws can greatly improve the durability and performance of the overall product. A small screw is a type of screw that is specialized for fixing small and precise parts. Generally, screws with diameters ranging from a few millimeters to about 10 millimeters are considered “small screws,” and their design allows them to be used in various tasks. Small screws, especially due to their small diameter, are widely used in precision machinery and electronic devices, where they are highly valued for joining delicate parts. The biggest feature of small screws is their diverse shapes and materials. For example, stainless steel small screws are resistant to corrosion and can be used in humid environments without rusting for a long time. Brass small screws, on the other hand, have high electrical conductivity and are often used in connecting electronic circuits. Furthermore, different shapes are used depending on the application, with designs such as round head screws or flat head screws, making small screws highly versatile items that are essential for assembling delicate components. Electronic Devices: Computers, smartphones, and cameras are composed of numerous small parts that are securely fastened with small screws. Properly fastened screws ensure the durability and stable operation of the device. For example, screws made of materials resistant to vibration and shock are often used to support precise circuit boards. Precision Machinery: In precision machinery such as watches, medical devices, and aerospace components, small screws are essential for securely fixing minute parts, ensuring accurate operation. Home Appliances: Small screws are also used in household appliances such as air conditioners, refrigerators, and washing machines, where they play a ...

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September 01st, 2024

Choosing the right tool for the intended purpose is important! How to handle screws and bolts: Screws and bolts are crucial components that greatly affect the safety and durability of products. By choosing the right tools and mastering proper handling techniques, you can improve work efficiency and quality. Don’t forget to maintain your tools regularly to ensure they are in optimal condition, as this is the first step towards improving product quality. Screws and bolts may look similar, but they are different components. Generally, screws are used alone to fasten materials, while bolts are used together with nuts. Screws can be directly fixed into materials like wood, metal, or plastic, whereas bolts are often used with nuts and washers to secure machine parts or construction materials. Both screws and bolts consist of the “head,” “shaft,” and “thread.” The head is the part turned by a tool, and the shaft affects the length and strength. The pitch (spacing) of the threads determines the holding power, with finer threads offering higher fastening strength. Machine Screws: Used in home appliances and precision instruments. Tapping Screws: Can be screwed directly into wood or thin metal sheets, making them useful for furniture assembly and construction sites. Hex Bolts: Used for securing machinery and structures that require high clamping strength. ▼ Basic Knowledge of Screws and Bolts URL: https://ohtavn.com/en/about-dealings/basic-knowledge/ ▼ Thorough Explanation of Screw Types! How to Choose the Best for Your Manufacturing Site URL: https://ohtavn.com/en/media/screw-type/ Selecting the right tools for handling screws and bolts is essential for ensuring proper fastening. Here, we explain the main types of tools and their features. Driver Drivers are one of the most basic tools and are used to tighten or loosen screws with Phillips (+) or slotted (-) heads. Phillips Driver: Designed for Phillips screws, widely used in households and DIY projects. Selecting the right size driver is essential for securely turning screws. Slotted Driver: Used for slotted screws or certain specialized screws, often found in older products or construction sites. Hex Wrench (Allen Key) A hex wrench is used for tightening hex bolts or socket head bolts (commonly known as cap bolts). Hex wrenches are especially useful in tight spaces or for accessing hard-to-reach areas inside machinery. Additionally, they allow for applying significant torque, making them ideal for secure fastening. Torque Wrench A torque wrench is a tool used to tighten screws and bolts to a specified torque. In the assembly of precision instruments or mechanical parts, exact torque is required, making this tool ...

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August 15th, 2024

Explaining the different types of screws! How to choose the best one for your manufacturing site: In this article, we will explain in detail the various types of screws used in manufacturing sites and the key points for selecting them. Choose the optimal screws according to the application and material to improve work efficiency and safety. Screws are simple yet crucial parts used to securely fasten multiple components. A screw consists of three main elements: the head, shaft, and thread. Head: This is the part that is turned with a screwdriver or wrench. There are various shapes such as Phillips (+), slotted (-), hexagon, and star. Additionally, there are countersunk and round head shapes, which are selected depending on the application. Shaft: The shaft connects the head and the thread, and its length and strength affect the screw’s overall performance. The thickness and length of the shaft determine the holding force and load-bearing capacity. Thread: The thread is a spiral groove engraved along the outer circumference of the shaft. When turned, it bites into the target material, providing holding power. The pitch (spacing) of the thread varies depending on the application. A coarse pitch is suitable for quick tightening, while a fine pitch offers greater holding power. The most basic role of screws is to connect and securely fix multiple components. This function allows the firm connection of parts in all kinds of products, from buildings and machinery to electronics, ensuring stable performance over a long period. Screws, with their simplicity and high reusability, offer unique advantages over methods such as welding or riveting. The primary role of screws is to stably fasten parts or structures. As the threads bite into the material, they generate strong holding power, able to withstand external pressure and vibrations. Especially with screws, once fastened, objects can be kept safe for a long time. This makes screws indispensable in industries like construction, automotive, and aviation. Unlike other fastening methods (such as welding or adhesives), screws can be easily removed with tools, making the disassembly and maintenance of machinery or products simple. If upgrades or parts replacements are needed, components fastened with screws can be easily removed, allowing for smooth repairs and modifications. This characteristic also contributes to cost savings in manufacturing. In environments with vibrations or operating machinery, screw loosening can be a problem. Therefore, various loosening prevention techniques have been developed. For example, combining screws with washers or nylon nuts can prevent them from loosening naturally. Furthermore, some screws themselves ...

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August 01st, 2024

Introducing the Fatigue-Reducing Mat – Top 3 best sellers: We would like to introduce the Fatigue-Reducing Mat from the Japanese manufacturer “Car-Boy”, which we highly recommend. Fatigue-Reducing Mats are not only considerate of factory workers’ well-being but also effective in keeping the factory clean and long-lasting. These mats address issues such as the fatigue experienced by staff who stand for long periods and the epoxy floor coating being damaged when workers step on chips that have fallen on the floor in processing areas. These mats are effective solutions for such problems. Therefore, this time we would like to introduce the top 3 best-selling products from Car-Boy. *Please check the size and specifications at Orangebook.com Samples of the mats introduced in this article are available for loan, so please feel free to contact us if you need them. Initially, this manufacturer produced corner cushions to prevent injuries to infants at home, but now it manufactures various safety goods for factories. ▼Website of Car-Boy Co.,Ltd http://www.car-boy.co.jp/ Safety goods for factories, utilizing the know-how from producing cushions and similar items, which are highly regarded. AM02：Leg and Back Mat, without Holes, Size M Size / Specifications (Japanese Version) Details here >> AM04：Leg and Back Mat, with Holes, size S Size / Specifications (Japanese Version) Details here >> AM01：Leg and Back Mat, without Holes, Size S Size / Specifications (Japanese Version) Details here>> AM01ESD：Leg and Back Mat ESD, Size S, Green Size / Specifications (Japanese Version) Details here >> In Vietnam, even though it rains a lot, the floors are often tiled so it can easily cause slipping This product, made with Japanese rubber components available in Vietnam, adheres well to the floor, making it possible to prevent accidents caused by slippery floors. Size / Specifications (Japanese Version) Details here>> For inquiries regarding samples or materials, please respond to this email or contact our sales representative! At Ohta Vietnam, we not only provide ready-made products such as screws and bolts, but also support activities in the manufacturing field such as cutting, inspection, assembly, packaging… Our equipment list is here As a “specialized support” for the manufacturing industry in Asia. If you have any related questions, feel free to contact Ohta Vietnam for detailed support! URL: https://ohtavn.com/en/contact/

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July 01st, 2024

Introducing highly weather-resistant surface treatment agents _ 5 recommended products from standard items: We would like to introduce the new product “Kaera LB” and other highly weather-resistant surface treatments from the manufacturer Ruspert – an industry expert in Japan. If you would like to know more details about the applications and usage of any of these products, please feel free to contact us! We are a long-established Japanese company specializing in metal surface treatment, with over 50 years of history. With experience in the field of “stainless” metal surface treatment, many of our products are applied in many different industries, and are considered a trusted brand with many other achievements in the market. ▼ Website of Ruspert Co., Ltd. https://ruspert.co.jp/ Typically, plating treatment is evaluated with a 72-hour salt spray test, but with Ruspert’s treatment, rust can be prevented for over 1,000 hours, and with the latest coating, up to 4,000 hours! We are also introducing products capable of surface treatment that surpasses stainless steel in Vietnam. A new high-coating agent that far surpasses stainless steel! This is an astonishing coating agent that exceeds 4,000 hours in salt spray tests. This new product of Ruspert , combining high strength for materials such as iron with rust resistance and weather durability that surpass stainless steel! Detail of Catalog (Japanese Version) Here is catalog>> This is a high-corrosion-resistant surface treatment developed as an alternative to stainless steel. Since it is plated with nickel at the base, it is less likely to get scratched. The above specifications are based on the results of a 2000 hours salt spray test conducted after creating scratches with an electric impact. Detail of Catalog (Japanese Version) Here is catalog >> This is a surface treatment that applies a DISGO LUNA coating over hot-dip galvanizing. The base being hot-dip galvanized provides strong anti-corrosion properties. Additionally, compared to bolts and nuts with only hot-dip galvanizing, the removal of excess galvanizing during the pre-treatment stage ensures smoother fitting. The above results were obtained from a salt-water spray test lasting more than 2,000 hours. Detail of Catalog (Japanese Version) Here is catalog>> This is a surface treatment that prevents the entry of corrosive agents through scratches by utilizing inhibitory effects, even when scratches occur. Detail of Catalog (Japanese Version) Here is Catalog>> This is a standard product released by Ruspert as a treatment agent for hot-dip galvanizing. Detail of Catalog (Japanese Version) Here is Catalog >> For inquiries regarding samples or materials, please respond ...