Advanced Sheet Metal Forming Service In Vietnam

Introduction

Sheet metal forming is a manufacturing process in which a piece of sheet metal is plastically deformed into a desired shape. The sheet metal is typically cut to size before being formed. The forming process can be done using a variety of tools and machines.Nhat Nam Mechanical provides different sheet metal forming processes, each of which is used to create a specific type of shape. Some of the most common sheet metal forming processes include:

Bending: Complex parts such as Usections, channel sections of different profiles can be produced by doing multiple bends. There is no change in thickness. Good dimensional repeatability as well as close tolerances is possible with this process.Nhat Nam uses several different types of press brakes to create formed and shaped pieces, ranging from 50 to 100 metric ton capacities. CNC operated, these systems create accurately formed parts quickly, and with the tight tolerances, our customers have come to expect.

Stamping: Usually done with a flat sheet of cold metal, Stamping, also known as pressing, is the process of creating a net shape out of metal using a tool and die surface. There are many other metal stamping processes such as embossing, bending, flanging, punching, etc. that we use to when working our customersDepending on the need of the customer, we can use progressive dies that are typically fed material via coil of steel. After it is unwound, it is then leveled and fed into the press to a predetermined length. The entire process of feeding the metal stamping with coil of steel helps in significantly reducing production lead-times. All of the benefit of our customers.

Capabilities

Bending Capabilities and Models


Maximum Bend Length	1193.80mm (47″)
Minimum Qualifying Part Size	12.7mm x 12.7mm in (0.05″ x 0.05″) for formed parts
Maximum Pressing Force	80 tons
Bend Angles	1 degree ‘kick’ to 135 degrees
Work Material	Aluminum, Stainless Steel, Carbon Steel

	AMADA RG 50	AMADA RG 80	AMADA SPH-60	AMADA RG 100	AMADA PEGA 357 CNC TURRET
	50 Metric Tons Capacity 2000 mm (78.8”) Bending Length 100 mm (3.94”) Stroke Length 220 mm (8.7”) Open Height	110 Metric Tons Capacity 2500 mm (98”) Bending Length 100 mm (3.94”) Stroke Length 220 mm (8.7”) Open Height	60 Metric Tons Capacity 835 mm (32.87”) Bending Length 100 mm (3.94”) Stroke Length 570 mm (22.44”) Open Height	100 Metric Tons Capacity 3000 mm (122”) Bending Length 100 mm (3.94”) Stroke Length 220 mm (8.7”) Open Height	Sheet size: 127×366 cm (50”x144”) Max. material thickness: 6.35mm (0.250”) Max. Hole Diameter: 114.3mm (4.5″) Punching Accuracy: +- 0.1mm (0.004”) Press Capacity: 33 tons Press Stroke: 31.75 mm (1.25”) Press Speed: 350 SPM Hit Rate (1” move): 200 HPM Turret Rotation Speed: 40 RPM

	TruBend 1150	TruBend 1060
	150 Metric Tons Capacity Press force 1500 kN 3100 mm (122”) Bending Length 910 mm (35.53 ”) Work Height 480 mm (58.26”) Open Height	60 Metric Tons Capacity Press force 600 kN 2050 mm (80.7”) Bending Length 910 mm (35.53 ”) Work Height 480 mm (58.26”) Open Height

Stamping Capabilities and Models


Deep drawing	uses a punch to fabricate deeply-recessed parts. The depth of a deep-drawn part exceeds its width, as with a cup made from a flat metal sheet.
Blanking or piercing	operations produce stamped parts by use of a punch and die. A press is used to advance the punch tool through a sheet into the mating die. Blanking and piercing operations typically require finishing or other secondary operations in order to remove sharp edges, burrs, or other rugged features.
Fine blanking	is a specialized, high-precision blanking technique in which material is sheared smoothly through its entire thickness. Fine blanking can be used to produce finished parts that do not require secondary operations.
Fourslide or multislide	stamping incorporates the vertical motion of a punch with horizontal die applications from multiple directions, either simultaneously or successively.
Progressive dies	are used in production-efficient processes where multiple stamping or forming operations are performed in successive stages or positions along the fabrication cycle.
Work Material	Aluminum Stainless Steel Carbon Steel

	AIDA CI-6 PRESS MACHINE	AIDA CI-8 PRESS MACHINE	AIDA CI-11 PRESS MACHINE	AMADA RG 100	AMADA PEGA 357 CNC TURRET
	50 Metric Tons Capacity 2000 mm (78.8”) Bending Length 100 mm (3.94”) Stroke Length 220 mm (8.7”) Open Height	110 Metric Tons Capacity 2500 mm (98”) Bending Length 100 mm (3.94”) Stroke Length 220 mm (8.7”) Open Height	Press capacity: 45 ton Stroke length: 150 mm (5.90″) Stroke per minute: 45~85 s.p.m Die height: 300 mm (11.81″)	100 Metric Tons Capacity 3000 mm (122”) Bending Length 100 mm (3.94”) Stroke Length 220 mm (8.7”) Open Height	Sheet size: 127×366 cm (50”x144”) Max. material thickness: 6.35mm (0.250”) Max. Hole Diameter: 114.3mm (4.5″) Punching Accuracy: +- 0.1mm (0.004”) Press Capacity: 33 tons Press Stroke: 31.75 mm (1.25”) Press Speed: 350 SPM Hit Rate (1” move): 200 HPM Turret Rotation Speed: 40 RPM

CNC tube & pipe bending

	AIDA CI-6 PRESS MACHINE	Work Material
	Aluminum tube: φ45xt2.0 Steel tube: φ42xt2.0 Bend axis: 300/0.6° (°/sec) Plane axis: 450/0.6° (°/sec) Feed axis: 1350 (mm/sec) Processing speed: 3.0～6.0 (sec/bend)	Galvannealed Steel Stainless Steel Steel

Materials & Post-processing

Steel

CRS/HRPO
Galvanneal (GA)
Galvanized (GI)

Thicknesses available

0.025 in. - 0.787 in. (0.635 mm - 20.0 mm)

Stainless Steel

Thicknesses available

0.025 in. - 0.393 in. (0.635 mm - 10.0 mm)

Aluminum

1050
5052
6061

Thicknesses available

0.025 in. - 0.393 in. (0.635mm - 10.0mm)

Panel fastener: A panel fastener is a toolless device installed on the outside of the mounting part. It has a threaded stud on a spring that allows you to push and fasten into a threaded receptacle.

Flush nut: This nut is installed flush with your sheet metal and does not protrude on either side of your case. A great replacement for a threaded hole.

Floating nut: A floating nut allow looser tolerance on hole placement because if they are not perfectly aligned, the thread can float over to receive the fastener. Protrudes on one side of the sheet metal.

Blind nut: A blind nut encapsulates your threads, typically to prevent any foreign material from entering inside. Protrudes on one side of the sheet metal.

Standoff: A standoff is a fastener that is used to create space between two objects, usually to properly position them in a given space.

Right-angle fastener: Right angle fasteners provide strong right-angle attachment points in sheet metal parts and enclosures, especially in thin sheets of metal.

Pilot pin: A pilot pin is a simple unthreaded rod that can be used for such applications as locating components inside your enclosure.

Nylon insert nut: This type of nut contains a nylon inserted locking thread that increases friction with the screw to enable tighter locking. Protrudes on one side of the sheet metal.

Nut: Considered a standard self-clinching nut, this type of nut does not encapsulate your threads. Protrudes on one side of the sheet metal.

Miniature nut: This type of nut is used to place fasteners closer to the edge of a part. Protrudes on one side of the sheet metal.

Stud: A stud gives you a permanently threaded screw inside your enclosure that can be used for many different purposes, including mounting or grounding components.

Previous slide

Next slide

Insert

For custom enclosures or parts, self-clinching fasteners are probably the most useful hardware components at a designer’s disposal. They solve a whole host of challenges when it comes to mounting components, and because of their compact design and low profile, they provide excellent aesthetics as well. Themost popular are PEMS Fasteners.

If you require a fastener we don’t stock, contact us – we’d be happy to source what you need, for added lead time and cost.

Part Marking

Part marking is a great way to add high-contrast markings, part numbers, logos, and more. The table below compares the different types of marking methods we offer.

Marking Method	Common Uses	Pros	Cons
Silk Screen	Graphics Logos Text	Color Variety Crisp Detail Works on a variety of materials	More costly at lower quantities Susceptible to wear/fading over
Laser Marking and Engraving	Graphics/Text Part Numbers	Extremely durable markings Crisp Detail	Cannot produce colored markings
Bag and Tag	Serialization Part Numbers	Very low cost Can speed up inventory and receiving processes	Non-permanent solution

Finishes

Applying a finish to your sheet cut parts can not only improve their cosmetic appeal but also provide surface protection and increased performance. Below you will find some of the post-processing options and finishes we offer:

Adhesives and Coating

Black Oxide
Powder Coating
Hot-Dip Galvanizing
Wet Paint

Anodizing

Type II Anodize
Type III Hard coat
Type III w/ PTFE.

Metal Plating

Electroless Nickel
Zinc
Gold
Silver

Pretreatments

Passivation
Pickle and Oil
Bead/Sand Blasting
Electropolishing

Design Guide

File Preparation Reference Sheet

File Types

Use vector files such as .DXF for 20 designs as well as for artwork such as engravings and part markings

Recommended 3D design formats:

.STEP
.STP
.SLDPRT
.PRT

File Optimization

Check that your design file does NOT contain:

- Duplicate or overlapping lines, curves, points, etc.
- Open curves or broken paths
- Lines with a length of less than zero
- Extraneous curves preventing the detection of boundaries
- Stray points or empty objects

Design Guidelines Reference Sheet

Tolerances

Design for edge to edge tolerances of +/- 0.010" nominal on the top-cut surface
Designate which is the top face on your drawing

Kerf

Don't forget to account for the thickness for laser cutting: 0.008-0.012"
Kerf width generally becomes larger as the material thickness increases

Distance Between Features

MT = Material Thickness

Minimum Hole to Edge Distance = 2X MT or 0.125”, whichever is smaller
Minimum Hole to Hole Distance = 6X MT or 0.125”, whichever is smaller
Minimum Relief Cuts = 0.010” or 1X MT, whichever is greater
Minimum Corner Fillets = 0.5X MT or 0.125”, whichever is smaller
Minimum Tab Thickness = 0.063” or 1X MT, whichever is greater
Minimum Slot Thickness = 0.040” or 1X MT, whichever is greater

FAQs

Common Sheet Metal Materials

Gauge	Steel		Galvanized		Stainless		Aluminum
Gauge	in	mm	in	mm	in	mm	in	mm
3	0.2391	6.07
4	0.2242	5.69
5	0.2092	5.31
6	0.1943	4.94					0.1620	4.11
7	0.1793	4.55			0.1875	4.76	0.1443	3.67
8	0.1644	4.18	0.1681	4.27	0.1719	4.37	0.1285	3.26
9	0.1495	3.80	0.1532	3.89	0.1563	3.97	0.1144	2.91
10	0.1345	3.42	0.1382	3.51	0.1406	3.57	0.1019	2.59
11	0.1196	3.04	0.1233	3.13	0.1250	3.18	0.0907	2.30
12	0.1046	2.66	0.1084	2.75	0.1094	2.78	0.0808	2.05
13	0.0897	2.28	0.0934	2.37	0.0940	2.39	0.0720	1.83
14	0.0747	1.90	0.0785	1.99	0.0781	1.98	0.0641	1.63
15	0.0673	1.71	0.0710	1.80	0.0700	1.78	0.0570	1.45
16	0.0598	1.52	0.0635	1.61	0.0625	1.59	0.0508	1.29
17	0.0538	1.37	0.0575	1.46	0.0560	1.42	0.0450	1.14
18	0.0478	1.21	0.0516	1.31	0.0500	1.27	0.0403	1.02
19	0.0418	1.06	0.0456	1.16	0.0440	1.12	0.0360	0.91
20	0.0359	0.91	0.0396	1.01	0.0375	0.95	0.0320	0.81
21	0.0329	0.84	0.0366	0.93	0.0340	0.86	0.0280	0.71
22	0.0299	0.76	0.0336	0.85	0.0310	0.79	0.0250	0.64
23	0.0269	0.68	0.0306	0.78	0.0280	0.71	0.0230	0.58
24	0.0239	0.61	0.0276	0.70	0.0250	0.64	0.0200	0.51
25	0.0209	0.53	0.0247	0.63	0.0220	0.56	0.0180	0.46
26	0.0179	0.45	0.0217	0.55	0.0190	0.48	0.0170	0.43
28	0.0149	0.38	0.0187	0.47	0.0160	0.41	0.0126	0.32

Why Chose Us?

Expertise

Our dedicated experts work closely with you every step of the way to design, develop, and deliver the precision-crafted part and customized product.

Vetted Network

With ISO 9001 Certification and ANSI Certification, only the top shops that apply to become network suppliers make it through our qualification process.

Expert help

Our team of Application Engineers and Process Specialists are available to support you and provide answers to all of your fabrication and manufacturability questions.

Have any questions?
Call us today!

(+84) 964 09 20 79

Introduction

Capabilities

Bending Capabilities and Models

Stamping Capabilities and Models

CNC tube & pipe bending

Materials & Post-processing

Insert

Part Marking

Finishes

Design Guide

File Preparation Reference Sheet

Design Guidelines Reference Sheet

FAQs

Common Sheet Metal Materials

Why Chose Us?

Key points about metal forming

Custom Sheet Metal Stamping Company in Vietnam

Sheet Metal Bending Service by Nhat Nam Mechanical

Sheet metal fabrication services in Vietnam: Quality, reliable, and affordable

Popular Metal Sheet Fabrication Methods in Vietnam

Custom Sheet Metal Fabrication

Have any questions? Call us today!

(+84) 964 09 20 79

Introduction

Capabilities

Bending Capabilities and Models

Stamping Capabilities and Models

CNC tube & pipe bending

Materials & Post-processing

Insert

Part Marking

Finishes

Design Guide

File Preparation Reference Sheet

Design Guidelines Reference Sheet

FAQs

Common Sheet Metal Materials

Why Chose Us?

Key points about metal forming

Custom Sheet Metal Stamping Company in Vietnam

Sheet Metal Bending Service by Nhat Nam Mechanical

Sheet metal fabrication services in Vietnam: Quality, reliable, and affordable

Popular Metal Sheet Fabrication Methods in Vietnam

Custom Sheet Metal Fabrication

Have any questions?
Call us today!