Pressings, stampings and fabrications

ChinaTech Sourcing can source components made from sheet metal power pressings, stampings and CNC pressings as well as fabricated or welded assemblies in sheets and tubes from pre-approved ISO 9000 and TS 16949 accredited factories in China. As engineering specialists we understand how to best apply metal forming processes in order to support your specific requirements and will select the most suitable pressings supplier offering low tooling costs with a Western-style quality regime.

Pressing processes

Pressing (also called stamping) is the term used for various sheet-metal forming manufacturing processes. These include punching using a stamping or machine press, blanking, embossing, bending, flanging and coining.

Some pressing operations are single stage whereby each stroke of the press produces the desired form on the sheet metal. Others, such as progression presses, transfer the metal through a series of stages in order to produce a finished component. This method of pressing is less efficient in terms of material utilisation but has a faster operating speed.

In addition to pressing we can offer assembly processes such as MIG welding, TIG welding and clinch assembly of fasteners/ threaded inserts, as well as fully finished parts with plating, powder coating, etching and printing.

Low-cost tooling for pressings

One of the misconceptions is that China is only advantageous for sourcing particularly high volumes. Tooling can in fact be far less expensive so making pressing a viable option for lower volume applications previously not considered. We can also respond very quickly, typically achieving lead times of between 20 and 30 days for new tools.

The development of the manufacturing process and tooling underpins cost-effective and quality manufacturing. In conjunction with our pressing suppliers we can offer advice on designing your parts for manufacture to ensure lowest costs and consistent quality. Your tooling, once paid for, is guaranteed for life as we will replace any worn tools free of charge.

Quality

Prior to production supply all pressings are initially supplied as PPAP (Production Part Approval Process) samples along with necessary ISIR (Initial Sample Inspection Reports) material certificates.

Ongoing production is controlled with appropriate process documentation, control plans and regular quality sampling via the inspection laboratories. Where necessary, SPC control can be applied to critical features.

Steel pressing