Handling _

After cutting the pipe material, determine the total length by lathe, The clamping unit is forged into a flat piece by the press.

■ Past Achievements 

Carbon steel pipe for machine structure (STKM11A). It is also possible to manufacture from the supplied materials.

Front

Side

Handling

The wire discharger is used to shape the test piece. (*The heat affected area due to wire discharge machining will be removed.) The handle part is flattened with a hammer at room temperature using a press.

■ Past Achievements

AL material. It is also possible to manufacture from the supplied materials.

Manufacturer: Showa Seisakusho

Model: Welding Test Piece (Front Bending)

Material

Producing test samples from customer-supplied steel pipes

Machining

Since there are protrusions throughout the material, the test piece has been cut down to the base of the material and treated so that it can be mounted in the testing machine.
Welding is done so that the sample can be mounted on the testing machine.
If a step is taken around the welded part, it can cause cracks starting from the step.
We scrape the welding area, including hand-finishing, to make it smooth.

Manufacturer: Showa Seisakusho

Model: Model Box

Here are some sample bins for ultrasonic testing (test samples).

Wooden box sample 1

May contain one or more items.

Wooden box sample 2

This box is used to store test samples.

Aluminum box sample 1

Aluminum box sample 2

We can deliver the specimen in a box that matches the specimen.

We also accept orders for individual cases.

Manufacturer: Showa Seisakusho

Model: Welding Test Specimen (JIS Tensile Test Specimen No.4)

Material

Prototype manufactured from steel pipe provided by customer

Handle

Since there are protrusions all over the material, we cut the material down to the base of the material and processed it so that the material could be attached to the tester.
The solder part has a step around the welded part.
If steps are taken around the welding area, cracks may appear starting from the steps.
Therefore, to ensure smoothness, we turn the welding area and the border R (shoulder radius).
We also scrape the solder area by hand to make it smooth.

Manufacturer: Showa Seisakusho

Model: Rotating Bending Fatigue Test Piece

Showa Seisakusho prototypes are polished cleanly so that the machining process does not affect material testing.

Machining aluminum alloy samples, jigs, prototypes, etc.
Besides, the centering runout is basically less than 1μ.
We can also perform longitudinal grinding and roughness removal on request.
The ADC12 equivalent material is cut from the supplied material (substance).
Of course, we can also manufacture test pieces from purchased material (with milled plate).

In material cutting and processing

We do our best to avoid applying unnecessary heat and stress effects to the material.
We recently partnered with an external organization to study the effects of internal stresses during machining, including final finishing.
We are working with external organizations to conduct X-ray measurements (strain) and inspect the material to determine the effect of internal stress during machining, including the final finishing together.

Material test sample

We are always looking for an answer to the question “Which treatment method will give more accurate results?
“What is the best treatment for this material?

We continue to conduct research on topics such as “Which treatment can lead to more accurate results?

material test piece

Manufacturer: Showa Seisakusho

Model: RB-A6

JIS Z 3060 (Ultrasonic flaw detection test method for steel welds) is used to create
an echo height dividing line when detecting flaws in circumferential joint welds .

RB-A6-OUTSIDE

RB-A6-INSIDE

Material

SF440A (forging material)

Handling
Forgings have been purchased and machined for forming.
The holes are 4 mm in diameter. and 4 mm deep machined on the inside and outside diameter faces.

Comparison test piece RB-A6
We have experience in machining the following materials

STPG
SKK490
SB410
SM490
A105(ASTM)
C12A(ASME)
STKN490B

We can also cut or cut from your supplied material.

Calibration (test) certificates, rolling plates, heat treatment records, forging certificates, etc. will be attached.

Manufacturer: Showa Seisakusho

Model: RB-41 (B)

Material (defect) inspection, heat treatment, acoustic anisotropy measured material

RB-41 No.1 19×65×300

RB-41 No.2 38×65×450

RB-41 No.4 90×125×600

RB-41 No.6 90×230×600

Machining

Cutting heat-treated materials
Surface grinding (defect detection surface polished) + drilling holes

Material Crushing Sheet Investigation, heat treatment records and inspection report (traceability chart) will be attached.
Inspection report (traceability chart) will be attached.

We were tasked with manufacturing standard STB prototypes.

The size of our ultrasonic test sample is more precise than the size specified by JIS.

Considering the intended use, we have made a sample with a hole perpendicular to the test surface, which is not required in the drawing.

The perpendicularity of the hole to the test surface, the roundness, the distance to the hole, the direction of grinding, etc., and the accuracy of the test piece are determined by the test piece.

We provide high quality test specimens taking into account the hole perpendicularity to the test surface, roundness, distance to the hole, grinding direction, etc., which are not required in the drawing.

Manufacturer: Showa Seisakusho

Model: Jig for W bending test

Standard

JIS H 3110
Made of phosphorus and nickel silver plates and strips

Design, manufacture assembly parts suitable for actual testing machine used for experiment
. W-bending die head with different radii (interchangeable) can be disassembled.

Material

Threaded part SKD11 (HRC58～)
Base SUS304, SS400, SUJ2, etc

Machining

Custom design
Material procurement
Cutting, discharge machining, grinding, laser engraving, inspection (including R part measurement)

Manufacturer: Showa Seisakusho

Model: Re-Calibrated Ultrasonic Test Sample

The ultrasonic test sample is used for calibration purposes.
They may be scratched or degraded after actual use.

We attach an inspection report when you purchase a new specimen, but some users may require the report to be valid for a certain period of time.
However, some users may use templates after the certificate’s expiration date.

We will retain the single-use test sample and issue a test certificate with re-measurement results, although a test fee will be charged.

We will issue an inspection certificate for the re-measurement results, although there will be an inspection fee. (From the customer’s point of view, this is an external calibration.)
We will, of course, provide the product with a certificate of calibration and a traceability chart.
However, depending on the application, there may be specimens that cannot be remeasured due to large scratches (dents) or significant rust.
However, there are some test pieces that cannot be remeasured due to large scratches (dents) or significant rust depending on the application.

Unable to remeasure – dent

Unable to Remeasure – Rust 1

Unable to Remeasure – Rust 2

Manufacturer: Showa Seisakusho

Model: Charpy Impact test piece

Control sampling location, sampling direction, identification numbering, V-groove orientation and
Remaining material management, sampling from complex and production sites.

Other
self-supplied materials, U-notch, hardness test, heat treatment, partial carburization, and custom-made shapes are also available.
Other specimens, such as tensile specimens, are also possible from adjacent sampling locations.

In addition, our Charpy impact test specimens are
processed while paying attention to residual stress, and
are infinitely perpendicular, and the notch is also processed vertically.

Manufacturer: Showa Seisakusho

Model: SUS304

Each is processed to a specified range of surface roughness by grinding or lapping.

In addition, there are differences in materials and supplied materials,

We have a track record of managing rough surface roughness and specified parameters (Rz, etc.) that cannot be produced by grinding.