Technology
While establishing integrated process/production system from material to lathe turning, heat treatment,
grinding and assembly.
We think that it is the first thing that we always explore new manufacturing technology for every process and provide safe,
functional and reasonable products which constantly exceed what customers expect.
Machining
We process work pieces with cutting tools, using machine such as lathes, grinders, machining centers.
We strive to create products at low prices with high quality through examining the most appropriate processing method to the shape and the accuracy out of various machine tools.
Lathe turning
Lathe turning is a method that a machine shapes material by means of a rotating drive which turns the piece being worked on against changeable cutting tools.
As processed parts inevitably become symmetric for a rotation axis, the purpose of this process is to create shapes such as a cylinder or a corn. We can achieve milling and drilling with high accuracy which cannot been accomplished with simple lathe turning at one chuck operation of the CNC automatic lathe.
Machining center
Machining center is a kind of process method, which rotates various kinds of cutting tools set on its main axis.
The difference from lathe turning is that lathe turning rotates a piece, but on the other hand, machining center rotates a cutting tool. It has a characteristic that one machine can perform different types of processes. We adopt the optimal method according to the purpose such as high accuracy by one chuck operation or high productivity by production line.
Grinding
Grinding is a process of grinding off the surface of material slightly with a grinding stone which rotates at high speed. It is used to obtain the dimensional accuracy in a micron unit or a smooth surface which cannot be obtained by the lathe turning process.
We can apply centerless grinding, cylindrical grinding, internal grinding, surface grinding and etc. to various parts needed to be processed.
Broaching
Broach is a bar-shaped axis on which many teeth are arranged.
This is a system that if the broach is set and pulled down, the material is scraped gradually by the arranged teeth and after the whole broach is pulled, we can obtain the same shape as the finishing teeth.
This process can provide high accurac and its productivity is also high. Therefore, this is suitable for mass-production.
Other process
We are ready to do processes other than machining. Regarding processes which are not introduced here such as rolling, heading, die-casting, heat treatment and surface treatment, integrated production is possible by our machining of what we procure from our cooperative companies.
Induction hardening
Induction hardening is a process of heat treatment used for the surface hardening by heating the outer surface of the parts by applying high frequency induction current caused by high frequency electromagnetic induction action.
The surface of the component is hardened, but toughness of its core remains unaffected and therefore wear resistance and fatigue strength are increased. This is widely used for automobile parts which require high strength and high rigidity, and is applied to most of our shafts.
Injection molding
Injection molding is a process for producing parts by injecting molten plastic material into a mold cavity, where it cools and hardens to the configuration of the cavity.
As for products required high strength and abrasion resistance property, we can provide products which satisfy required properties by using insert molding, which insert plastic resin into around metallic parts
Assembly
Under the concept that the quality of products to be finally used is important, we can handle not only process of a single component but welding and assembly.
We can provide products with high quality by combining with our evaluation system.
Welding
Welding is a process used for joining two metallic parts through the application of heat. We mainly adopt plasma welding among many types of welding. Plasma welding is an arc process in which a plasma arc is the source of heat. Comparing with tig welding, it has some merits such as deep penetration, less distortion caused by heat and faster welding speed.
Correcting distortion
Heat of heat treatment or welding causes distortion of metallic parts, for example bending or deformation. There is a possibility of the occurrence of a problem in quality if a distorted part is sent to the subsequent process or shipped to a customer as a finished part because most of our products are precision parts.
Therefore, the process to correct distortion is necessary. Distortion correction is performed to a shaft until its distortion becomes less than 0.1mm.
Assembly
We assemble shifts and select shaft ass'y products mainly.
All facilities for assembly are designed and created by our own.
The facilities look quite ordinary, but are designed to the detail so that they can prevent the occurrence of all errors which are possible to happen in the factory such as wrong assembly.
Evaluation system
Measuring apparatus
We evaluate accuracy and performance of the assembled products with the special inspection facilities and in a stage of development applying the tests to promote wear or breakage can make the period
of evaluation shorter.
We evaluate not only simple accuracy but strength or endurance.。
Inspection device
100% inspection is set after assembly of shift and select shaft. We will accommodate customer needs, for example position setting in operation, operation load setting, leakage inspection.
We can support customer development through evaluation of performance with inspection devices for a prototype even in the development stage because we design and create these devices by our own.
Test device
We can perform various tests in our company from strength evaluation of applying a static load simply to endurance evaluation of applying several hundred thousand or million time respected load.
We use versatile testing devices and would like to propose an evaluation method after interviewing customer 's request. It is possible to reduce the evaluation period drastically by our testing devices.
Measuring apparatus
We have various measuring apparatus to measure shapes or dimension such as a coordinate measuring machine, surface texture and a contour measuring instrument or a projector, to measure hardness such as a Vickers hardness tester or a Rockwell hardness tester, and to observe state such as a microscope.
These are for general purpose, but we will propose the best selection of apparatus and management method to meet customer's request.
Major facility we own
