石敏鐵工 List of Products and Services

When creating prototypes of die-cast parts, we recommend using ADC12 block material. The ADC12 we use is almost identical in composition to mass-produced products. Additionally, it allows for the production of uniform parts without any voids. ★ We conducted a tensile test using ADC12 test pieces. We are publishing the yield strength and tensile strength based on actual test results, not reference values. Please feel free to download the materials and take a look. 【Benefits of Prototype Production with ADC12】 - Prototypes can be made with a composition almost identical to mass-produced products. - Uniform parts can be produced without any voids. - Compared to gypsum casting, it offers superior lead time and precision. * Data on hardness and tensile strength is available. * For more details, please refer to the catalog or feel free to contact us.

• Processing Contract
• Prototype Services
• others

This is a document that lists the issues encountered during the prototyping and development using ADC12 material, such as "there are voids," "it takes time," "it cannot be obtained," and the solutions that become possible thanks to Ishitobiron. 【Do you have any of these problems?】 ■ There are voids… ■ It takes time… ■ It cannot be obtained… ■ The material properties are unknown… *For more details, please refer to the PDF available for download.

• Other polymer materials
• Processing Contract

ADC12 is an aluminum alloy that excels in wear resistance, machinability, and castability. It is widely used in automotive parts and is one of the most commonly used alloys in aluminum die casting. As another option for prototyping, why not conduct a machined prototype using the same "ADC12" as the mass-produced products? *For more details, please watch the introduction video below!

• Other polymer materials
• Processing Contract

In the pre-evaluation of mass-produced die-cast products, there is an increasing trend to use "ADC12 material" to create prototypes with quality close to that of mass-produced items. However, due to variations in performance and delivery times depending on the technical level, it is necessary to find processing companies with proven technology and experience. 【Common concerns with prototypes made from ADC material】 - We are prototyping with gypsum cast products, but the shape accuracy of the cast surface is poor, which may affect the evaluation. - There is interference between parts, making assembly impossible, so we want to trim the interfering parts to enable assembly. - Design changes have piled up, shortening the prototype delivery time. There is a possibility of delays in subsequent processes. → Ishitobiteko will solve the above concerns based on its extensive processing experience in the automotive and machine tool industries! ◆ With Ishitobiteko... - We use mold processing machines for part machining, providing high-precision prototypes with minimal variation! - We can accommodate urgent additional processing! Both gypsum cast products and machined parts are acceptable. If jigs are available, next-day delivery is also possible! - We have a track record of production in as little as three days! We can also deliver only the necessary quantities for evaluation in advance! *For more details, please download the materials and take a look.

• Processing Contract

Our company specializes in made-to-order production of automotive-related parts in small lots (approximately 1 to 100 pieces). We excel in the machining of aluminum prototype parts and evaluation test jigs. With multiple 5-axis machining centers, we can accommodate short delivery times. Additionally, we are engaged in various fields, including metal processing for automotive prototypes, material sales, and processing of different materials. *For more details, please download our catalog or contact us.*

• Contract manufacturing
• Processing Contract

We perform cutting processing of soft materials such as expanded polystyrene and urethane. In particular, we specialize in three-dimensional curved surface processing. We respond quickly using dedicated machinery equipped with dust collectors. The sizes we can handle are approximately 800 × 400 × 300 (mm). Additionally, we are engaged in a variety of fields, including metal processing for prototypes of automotive parts, material sales, and processing of different materials. *For more details, please download the catalog or contact us.*

• Contract manufacturing
• Processing Contract

If you want to create the same item without a production drawing, leave it to us. We will investigate the product specifications using a non-contact 3D digitizer, break it down into parts, and reproduce it as a drawing. Based on this, we also accept the production of prototypes and items of different sizes. Additionally, we are engaged in a variety of fields, including metal processing for automotive parts prototypes, material sales, and processing of different materials. *For more details, please download the catalog or contact us.*

• Contract manufacturing
• Processing Contract

At Shimin Iron Works, we manufacture prototypes from ADC12 block material without cavities and have extensive processing experience in industries such as automotive and machine tools. This time, we used our metal processing technology to create Halloween-themed bottle caps! 【Process】 1. Non-contact shape measurement 2. Rough machining on a lathe (using an Okuma NC lathe) 3. Finishing machining on a lathe 4. Face boring on a lathe 5. Cutting 6. Processing of the bottle attachment part (using an Okuma machining center) 7. Anodizing treatment *Please check out the introduction video below to see the "seriousness of metal processing!"

• Other polymer materials
• Processing Contract

We received an inquiry from an automotive design company stating, "The design specifications have changed multiple times, the drawings are delayed, and the deadline for prototypes is approaching. Is there anything we can do about it?" They requested the delivery of 15 units within one month and asked us to review the design drawings, specifying that they wanted to consider two methods: gypsum casting and machining (full machining). Since the desired delivery date was already less than a month away, we determined that gypsum casting would not be feasible and proposed the machining (full machining) method instead. We explained that we would use ADC12 block material for the prototypes, which has the same material properties as the mass-produced items. Using a horizontal machining center, we were able to set up the next material in the spare pallet even during processing, allowing us to continue machining without stopping the machine, and we were able to deliver as scheduled in three weeks. [Case Study] ■ Application: Prototype of car navigation housing ■ Method: ADC12 machining ■ Size: 200×120×40 (mm) ■ Delivery Time: 3 weeks ■ Quantity: 15 units *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Processing Contract

We received an inquiry from a major local automotive parts manufacturer asking, "Could you process 60 units of the casing for us?" Typically, gypsum casting is used for large quantities, but they requested, "We want to conduct a pre-production evaluation in a short period, so we would like you to provide machined parts made of ADC12, even if it incurs some costs." In response, we proposed the best and fastest method that could be achieved. While securing a manufacturing line for other customers, we utilized a key piece of equipment, the "50,000 RPM air turbine spindle," to operate the remaining line 24 hours a day. We determined that adopting a production plan based on this would allow us to reduce processing time. Additionally, by rearranging the processes during the day and conducting unmanned processing at night, we established an efficient production plan that finally enabled us to meet the delivery deadline and respond according to the specified delivery schedule. 【Case Study】 ■ Application: Prototype casing for electric VVT drive unit ■ Method: Machining from ADC12 ■ Size: Diameter 120mm, Thickness 20mm ■ Delivery Time: 1 month ■ Quantity: 60 units *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Processing Contract

"MBF: Mono Base Frame" is a mass-produced frame that can serve as a base for various space equipment, such as ultra-small satellites (CubeSats). It is manufactured by machining aluminum blocks, achieving lightweight construction and high design flexibility. Additionally, it has no joints and high rigidity, making it adaptable to harsh environments. The reduced number of components also allows for a decrease in assembly labor. ■ Background of the Space Industry As the demand for space equipment increases, continuing with the traditional manufacturing method of handcrafting each unit leads to variations in assembly quality depending on the worker, making stable mass production difficult. With the emergence of "mega-constellations" that deploy numerous ultra-small satellites in low Earth orbit, it is essential to reconsider traditional manufacturing methods. The "MBF" promises to enable stable mass production of high-quality space equipment. ■ The application areas of MBF are expanding! - Propulsion systems incorporating thrusters and valves - Space debris mitigation devices with built-in tether deployment mechanisms - Structures for PocketQube (scheduled for launch in 2020), etc. *Reference materials can be viewed from the "PDF Download" link below.

• Contract manufacturing

Our company leverages its many years of experience and technology as a roof tile mold manufacturer to take on the challenge of a new field: "Ultra-Compact Aluminum Frames for Small Satellites: MBF." Existing products, which are split-type and consist of multiple aluminum parts, require measures and evaluations to prevent loosening of screws. Our "MBF" is a monolithic structure machined from block aluminum, eliminating joints, which means there is no concern about precision being affected by the skill of the operator. This allows for greater focus on the design of the satellite's internal components. Since the start of frame development in 2017, we have garnered attention from industry stakeholders, and our frames have been adopted by satellites being developed by Shizuoka University and Kyushu University. (These satellites are expected to be used for research on space elevators and space debris countermeasures.) Our company will continue to take on challenges in new fields, starting with the space business. *Please download and view the product catalog from the link below.*

• others

The aluminum monocoque structure 'MBF: Monobase Frame', handled by Shimin Iron Works, has been adopted for research by the "Kyushu University Spacecraft Dynamics Laboratory." In this laboratory, a demonstration experiment is being conducted on the technology of measuring the orbit of "space debris" from Earth through photometric observations (light curve inversion), which is a challenge in space development. Specifically, the main mission involves combining attitude orbital observation data with light curves to demonstrate dynamic estimation through optical observations. Our MBF has been adopted as the frame component of this "Q-Li" project, and we are engaged in co-creation development to contribute to space debris research. **Features of MBF:** - Lightweight and highly flexible in design due to its monolithic construction through machining. - Fewer parts allow for a reduction in assembly labor. - Capable of high-quality mass production. *For details on the demonstration experiment and MBF, please refer to the "Catalog Download" below.*

• Contract manufacturing

At Shimin Ironworks, we have developed a technology to process the frames (structures) of "ultra-small satellites," which are expected to see increased demand in the future, by machining from aluminum blocks. The product is named 'MBF: Monobase Frame.' While "split-type" designs are common, our MBF is a "monocoque type," making it easier to reduce weight and offering greater design flexibility. With fewer components, it leads to reduced assembly labor and improved quality stability. The frame's rigidity, weight, and shape can be freely customized according to application needs, allowing us to accommodate requests such as "I don't need rigidity but want it to be lightweight" or "It can be heavy, but I want it to be durable!" **Features of MBF:** - Lightweight and high design flexibility due to monolithic construction through machining - Reduced assembly labor due to fewer components - Capable of high-quality mass production *Reference materials can be viewed via the "PDF Download" link below.*

• Contract manufacturing

Ishitoshi Iron Works Inc. has developed a technology to cut directly from aluminum block the body frame of Cube Sat, which sees increasing demand. The product is “MBF – Mono base frame.” Conventionally, the body frame of Cube Sat has been the ‘separated’ type. However, our MBF employs a light-weight integrated structure, allowing more flexibility in design. Having fewer components shortens assembly time and assures quality since we have less components to worry about.

• Contract manufacturing