[Contract] Wire cutting processing of large SUS304 frame

Hanshin Seiko Co., Ltd. has published a technical article titled "Just a Little More to Cut. The Moment is Difficult | The Pitfalls of Wire Cut 'Separation'." In wire cutting, the support state of the material changes the moment the cutting is completed. It is important to plan the extraction method, considering the potential drop, tilt, and contact with the machine of the separated core or product. The article introduces ideas based on our experiences with contact and entrapment of cut-off pieces, such as creating a leftover section to stop once and the order of separation and finishing processes. It also explains points to confirm with large, heavy parts and the differences due to residual stress-induced deformation. If you are considering cutting or dividing large parts, processing large openings, or additional processing on supplied items, please take a look. For processing inquiries, please contact us with drawings that indicate material, dimensions, weight, cutting position, and required accuracy.

We would like to introduce a machining case where a frame for a buoy retrieval device was manufactured from a cup-shaped workpiece made of SUS304. Three large sections were cut away from the side wall of the workpiece with an outer diameter of φ306mm and a height of 370mm, forming an opening and an arch-shaped contour. The height of 370mm refers to the outer dimensions of the workpiece and should be distinguished from the actual thickness of the material being cut. The official article discusses the cutting sequence considering the release of residual stress and changes in rigidity, centering using a dial gauge, and methods of holding, along with photos taken before and after machining. For inquiries regarding the machining of large and hollow shapes, please provide the drawings and photos before machining, as well as the material, overall dimensions, wall thickness, machining range, required tolerances, quantity, and desired delivery date. For more details, please refer to the official article linked in the related links.