D. B Forgings (P) Ltd.

The process of applying necessary pressure to all or some portion of surface of a forging is to obtain closer tolerances or smoother surface or to eliminate drafts is called coining. Coining can be done while forgings are hot or cold and it is usually performed on surface parallel to the parting line of the forging. We produce wide variety of critical shape parts and due to different shapes & sizes. To provide coining services we have installed two hydraulic coining presses of capacity 100 ton and 200 ton. This assures that proper relations are maintained between different dimensions as per drawing.

The best forging services come from outstanding raw materials good hammering/pressure equipment and the kind of dies that ensure every part comes out flawlessly. As we are in the industry for quite a long period now, we have very good contacts with steel mills and we have got development of many customized steel as per our client's requirements. The only requirement for these types of steels is that the quantity required should be at least 30 tonnes as the heat size of any good steel mill is minimum 30 tonnes. Full data sheet showing process of steel making, as rolled hardness, ultrasound testing reports are provided with PPAP documents.

Magnetic particle testing is a non-destructive test method of inspecting areas on or near the surface of ferromagnetic materials. The material is magnetized by passing current then iron powder is applied. The powder adheres to lines of flux leakage revealing surface and near surface discontinuities or cracks. Magnetic particle testing is used for both raw material acceptance testing and product inspection after forging. All the parts which are detected with cracks are rejected and scrapped. The operators are provided with regular training so as keep them abreast with the latest techniques.

Normalizing is a heat treatment for ferrous alloys which are heated to App 100 F above the critical range holding that temperature for the required time (Soaking time) & cooling to room temperature in air. We have state-of-the-art continuous fully automatic ISO thermal normalizing cum hardening & tempering furnace. All the parts after forging are normalized in this furnace. Proper Micro & Macro structure is maintained and cut section is checked in our own fully equipped Laboratory and for parts requiring hardening & tempering 100% inspection is done at BHN tester. All the inspection machines and testing equipments are regularly calibrated.