MIL-STD-3021 CHG 1

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MIL-STD-3021

w/CHANGE 1

13 July 2011___

SUPERSEDING

MIL-STD-3021

4 August 2008

DEPARTMENT OF DEFENSE

MANUFACTURING PROCESS STANDARD

MATERIALS DEPOSITION, COLD SPRAY

AMSC N/A AREA MFFP

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

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MIL-STD-3021

w/Change 1

FOREWORD

1. This standard is approved for use by all Departments and Agencies of the Department of

Defense.

2. The purpose of this standard is to develop the manufacturing process controls for a cold

spray operation utilizing a high-velocity jet of solid-phase particles. The jet temperatures are below

the melting thresholds of many engineering materials. This allows the process to be used to apply

deposits on a wide variety of substrates, such as, alloys, ceramics, and plastics. Moreover, the

deleterious effects of deposit oxidation, evaporation, and residual thermal stresses are avoided.

3. This standard is required because the cold spray deposition process has significant

differences from thermal spray coating technologies such as high velocity oxy-fuel (HVOF),

detonation gun, plasma spray, flame spray, and arc spray. These process differences result in

application criteria, process equipment, and operating parameters that are considerably different than

previously documented processes. The objective is to enable the application of Cold Spray

Deposition with the success of the aforementioned processes when properly applied.

4. Comments, suggestions, or questions on this document should be addressed to: Director,

U.S. Army Research Laboratory, Material & Manufacturing Science Directorate, Materials

Manufacturing Technologies Branch, Specifications and Standards Office, Attn: RDRL-WMM-D,

Aberdeen Proving Ground, MD 21005-5069 or emailed to richard.j.squillacioti.civ@mail.mil. Since

contact information can change, you may want to verify the currency of this address information

using the ASSIST Online database at https://assist.daps.dla.mil/.

Provided by IHS

Licensed by www.sepana.ir

Sale only by www.sepana.ir, 05/22/2014 02:12:09 MDT

No reproduction or networking permitted without license from IHS

--`,`,``,`,`,``,,`,```,,,`,,`,,`-`-`,,`,,`,`,,`---

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MIL-STD-3021

w/Change 1

iii

SUMMARY OF CHANGE 1 MODIFICATIONS

The following modifications to MIL-STD-3021 have been made:

Paragraph Modification

1.2 Added

1.2.1 Changed

Figure 1 Changed

Figure 2 Changed

3.1 Changed

3.4 Powder meter wheel. Deleted

4.1 Changed

4.3.1 Changed

Table I Changed

4.3.2.2.2 Changed

4.3.3 Changed

Figure 1 Changed

4.4 Changed

5.1.2 Changed

5.1.2.1 Changed

5.1.2.2.2 Changed

5.1.3.4 Changed

5.2.2 Changed

Provided by IHS

Licensed by www.sepana.ir

Sale only by www.sepana.ir, 05/22/2014 02:12:09 MDT

No reproduction or networking permitted without license from IHS

--`,`,``,`,`,``,,`,```,,,`,,`,,`-`-`,,`,,`,`,,`---

daneshlink.com

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摘要：

MIL-STD-3021 CHG 1 是针对美国军用标准 MIL-STD-3021 的第一次修订变更，旨在更新和优化军用系统或装备在特定技术领域的测试与评估要求。该标准通常涉及电子系统或通信设备的电磁兼容性、互操作性或可靠性验证，CHG 1 版本通过修正技术参数、调整测试流程或增加新规范来确保标准与当前技术发展和作战需求保持同步。对于从事军用产品设计、认证或采购的工程师与项目经理而言，了解此变更内容有助于满足国防部合规要求、规避合同风险，并提升装备在实际战场环境中的性能表现与安全性。

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MIL-STD-3021 CHG 1

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