Custom Precision Sheet Metal Fabrication Services

Precision Sheet Metal Manufacturer - Goldconn

Goldconn is a professional precision sheet metal manufacturer in China, mainly specialized in custom sheet metal fabrication and focus on one stop solution of custom sheet metal fabrication service from a new design to mass production for its customers since year 2004. Has been specialized in offering the best OEM custom sheet metal service for superior quality.

Custom Sheet Metal Fabrication

Custom sheet metal fabrication is a process blanking by CNC punching or laser cutting, including bending/folding, forming, welding, riveting, PEM installing, deburring, polishing, brushing surface treatment and assembling for various of metal products.

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Sheet Metal Prototyping Services

(1) Goldconn provides engineering support to optimize customer's design with the lowest production cost.

(2) Goldconn provides professional CNC Punching and Laser cutting service for sheet metal fabrication.

(3) Goldconn provides rapid prototype/sample for customer validation in 2 weeks.

(4) Goldconn provides outsource service for other components and assembling in the house for a complete set.

(5) Goldconn also supports customers to improve the design when the product switch to the hard stamping process from the sheet metal process.

Custom Sheet Metal Fabrication Process

Laser Cutting Process

Laser cutting uses a high powered laser to cut through sheet metal. A series of mirrors and lenses direct and focus a high-energy beam of light onto the surface of the sheet metal where it is to be cut. When the beam strikes the surface, the energy of the beam melts and vaporizes the metal underneath.

CNC Punching Process

CNC punching is a modern sheet metal fabrication process that is carried out by computer-controlled punch press machines. Punch presses use special rams to create holes or indent forms into sheet metal using dedicated computer software to position the ram.

Bending Process

Bending is a metal forming process in which a force is applied to a piece of sheet metal, causing it to bend at an angle and form the desired shape. A bending operation causes deformation along one axis, but a sequence of several different operations can be performed to create a complex part. Bent parts can be quite small, such as a bracket, or up to 20 feet in length, such as a large enclosure or chassis.

Insert Installing Process

Insert installing process which an insert is placed on the pre-drilled or pre-molded hole and the horn of the ultrasonic tool is pressed down on the insert. The horn transmits ultrasonic vibration to the metal insert and the friction from the vibration of the insert melts a thin film of resin at the metal-plastic interface. Pressure from the ultrasonic tool forces the metal insert into the hole until it is completely inserted. When the ultrasonic tool is removed, the melted plastic next to the insert solidifies and the insert is locked into place.

Welding Process

Welding is a fabrication process whereby two or more parts are fused together by means of heat, pressure or both forming a join as the parts cool. Welding is usually used on sheet metals fabrication.

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Advantages of Sheet Metal Fabrication

(1) Saving high NRE/tooling cost at the NPI process.

(2) Fast Lead time 1-2 weeks for rapid prototype.

(3) Quick turn process for small volume production for customer trial run/PP qualification.

(4) Strong flexibility to meet customer's requirements on design improvement.

What Material use for sheet metal?
Goldconn generally follows the required material by customers, also provides local equivalent material with the better cost for optional. The most popular material for sheet metal as following:
(1) Steel alloy: SPCC, SGCC, SECC, GL, SPHC, SPTE, etc.
(2) Stainless steel: SUS301, SUS304, SUS316, SUS430, etc.
(3) Aluminum alloy: AL5052, AL6061, AL1050, etc.
(4) Copper alloy: C1100, C2680, etc.

What surface treatment used in sheet metal products?
Goldconn generally follows the required finishing by customers, also provides local equivalent finishing with the better cost for optional. The following finishing is available to support customers;
(1) Powder coating
(2) Liquid painting/wet painting
(3) Electroplating/Plating
(4) Passivation
(5) Polishing
(6) Anodizing/Anodized
(7) Chromate/Conversion coating
(8) Bead blasting/Bead blast
(9) Abrasive blasting/sandblasting
(10) Hair brushing/brushing
(11) Silkscreen/laser printing

What is the difference between metal stamping and sheet metal fabrication?
Metal stamping can refer to any of a number of metal forming operations—in addition to stamping, bending, pressing, folding, and stretching actions may be used to produce the final part. All metal stamping processes utilize punch presses with custom-made tooling and dies to produce a shape, pattern, or other characteristic a part requires. In general, the stamping process can provide tighter tolerances than sheet metal fabrication. It is a fast and cost-effective way to produce metal parts in large quantities.
Sheet Metal fabrication entails the manufacturing of three-dimensional metal parts via cutting, bending, and/or other assembly processes. Fabrication generally requires more specialized equipment, such as CNC laser cutters, CNC press brakes, CNC turret presses, and welding. Sheet metal fabrication is often the more economical way to produce parts in lower quantities, as the tooling associated with stamping can be costly. Fabrication also provides greater design flexibility than stamping, as there is no tooling to change should your part design require alteration.

What other information is needed besides prints when I submit the RFQ for sheet metal ?

When you submit your RFQ (Request For Quote) via email or fax, please let us know the following:
(1) 2D drawing in PDF, DWG, DXF format.
(2) 3D drawing in STEP, STP, IGS, X_T format.(For simple parts it is not a necessary, for complex parts, it is necessary to have 3D drawing)
(3) Material information
(4) Surface treatment/finishing information
(5) Batch quantity/ (Annual Usage if Available)
(6) Product application/industry ( this is helpful to consider the best solution for cost)
(7) Any special requirements if not annotated on print (Example: Specific Packaging Requirements)

FAQ

What are your minmum order quantities(MOQ’S) for sheet metal parts ?
Due to our specialty in short run orders, we are very flexible in order quantities. Our quotes always to respect customer’s requirement.

What I should do if I don't have a PDF file or print?
If you don't have a PDF file or print , you can provide/send a tangible prototype, then come by our facility or send us the prototype and we will be more than happy to discuss your product.

What is considered a normal lead time?
This depends upon the complexity of the project, but in most cases you should allow for 3 to 4 weeks to complete your parts.

What is the difference between a medium and large run?
In general, a medium run of parts would be in the vicinity of 100-500 parts per order. Anything more than 1,000 would be considered a large run.