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Introduction

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 customers

Depending on customer requirements, Nhat Nam can use progressive dies, which are typically fed with material from a coil of steel. After being unwound, the steel is leveled and fed into the press at a predetermined length. This coil-fed metal stamping process significantly reduces production lead times, bringing substantial benefits to our customers.

Capabilities

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 TORC-PAC 45 WASINO PUX 80-KRC
  • Press capacity: 60 tons
  • Stroke length: 140 mm (5.51″)
  • Stroke per minute: 45~85 s.p.m
  • Die height: 300 mm (11.81″)
  • Press capacity: 80 tons
  • Stroke length: 160 mm (6.3″)
  • Stroke per minute: 45~85 s.p.m
  • Die height: 300 mm (11.81″)
  • Press capacity: 110 tons
  • Stroke length: 180 mm (7.09″)
  • Stroke per minute: 45~85 s.p.m
  • Die height: 350 mm(13.78″)
  • Press capacity: 45 tons
  • Stroke length: 150 mm (5.90″)
  • Stroke per minute: 45~85 s.p.m
  • Die height: 300 mm (11.81″)
  • Press capacity: 80 tons
  • Stroke length: 180 mm (7.09″)
  • Stroke per minute: 45~85 s.p.m
  • Die height: 350 mm(13.78″)

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
  • 201
  • 304
  • 316
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.
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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

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

What materials can you stamp?

We stamp aluminum, stainless steel, and carbon steel, catering to a wide range of industry requirements.

How fast is your stamping process?

Our machines operate at 45-85 strokes per minute, and using progressive dies with coil-fed steel helps reduce production lead times significantly.

Can you produce small, detailed parts with stamping?

Yes! Our fine blanking process creates high-precision parts with smooth edges, often eliminating the need for secondary operations.

Do you support the development of dies and jigs for different products?

Yes, we can help develop dies and jigs to match the specific needs of your products, ensuring a smooth and efficient stamping process.

Common Sheet Metal Materials

GaugeSteelGalvanizedStainlessAluminum
inmminmminmminmm
30.23916.07
40.22425.69
50.20925.31
60.19434.940.16204.11
70.17934.550.18754.760.14433.67
80.16444.180.16814.270.17194.370.12853.26
90.14953.800.15323.890.15633.970.11442.91
100.13453.420.13823.510.14063.570.10192.59
110.11963.040.12333.130.12503.180.09072.30
120.10462.660.10842.750.10942.780.08082.05
130.08972.280.09342.370.09402.390.07201.83
140.07471.900.07851.990.07811.980.06411.63
150.06731.710.07101.800.07001.780.05701.45
160.05981.520.06351.610.06251.590.05081.29
170.05381.370.05751.460.05601.420.04501.14
180.04781.210.05161.310.05001.270.04031.02
190.04181.060.04561.160.04401.120.03600.91
200.03590.910.03961.010.03750.950.03200.81
210.03290.840.03660.930.03400.860.02800.71
220.02990.760.03360.850.03100.790.02500.64
230.02690.680.03060.780.02800.710.02300.58
240.02390.610.02760.700.02500.640.02000.51
250.02090.530.02470.630.02200.560.01800.46
260.01790.450.02170.550.01900.480.01700.43
280.01490.380.01870.470.01600.410.01260.32

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.