Qualifying an XYZ robotic adhesive application for freezer assembly / Tim Jones in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 26, N° 10 (10/2019)  

[article]  inADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 26, N° 10 (10/2019) . - p. 28-32 Titre : Qualifying an XYZ robotic adhesive application for freezer assembly : An appliance manufacturer successfully upgraded its freezer assembly process from an outdated XY-applied hot-melt pressure-sensitive adhesive to a fully automated XYZ application Type de document : texte imprimé Auteurs : Tim Jones, Auteur ; Aggie Lotz, Auteur Année de publication : 2019 Article en page(s) : p. 28-32 Langues : Américain (ame) Catégories : Adhésifs -- Application-dosage Adhésifs thermofusibles Assemblages collés Automatisation Essais d'adhésion Stabilité thermique Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Electrolux is a global manufacturer of appliances ranging from washers and dryers to water heaters and dishwashers. The company’s St. Cloud, Minn., Manufacturing and Quality Assurance (QA) departments had identified a loss in productivity and inconsistent quality in its freezers. As a result, an internal team involving seven Electrolux departments in St. Cloud set out to upgrade from an outdated XY-applied hot-melt pressure-sensitive adhesive (HMPSA) to a fully automated XYZ application process. At issue was a seemingly underperforming HMPSA. The Manufacturing department’s stopgap of reinforcing the HMPSA with large quantities of 2-in.-wide masking tape, which also required more labor hours, was driving up production costs. Equally important was the issue that the plant’s target for the number of freezers assembled per shift was not being met. An internal consensus was reached: the stopgap had to be replaced. Representatives from Electrolux’s Manufacturing, Quality Assurance (QA), Manufacturing Engineering, Maintenance, Electrical, Materials Engineering, and Purchasing departments regularly forged solutions through ad-hoc teams to improve plant operations. In this case, the company’s Purchasing department reiterated that Manufacturing’s stopgap was exceeding its bill of materials for the freezer application’s masking tape and labor. QA identified vibration noises in the freezer’s air duct subassembly, resulting in a higher-than-average service call rate (SCR) in the field. The Manufacturing Engineering, Maintenance, and Electrical departments wanted to update unreliable, outdated adhesive application equipment and operating software to mitigate escalating maintenance costs. Having identified these multiple objectives, the department representatives deployed an ad-hoc development team to address the HMPSA application and the SCR vibration noise. The team’s first order of business was to establish benchmarks. Note de contenu : - Attachment process - SCR noise mitigation - Engineering a solution - Laboratory testing - Testing on th eplant floor - XYZ robot applicator installation and testing - Fig. 1 : Warped air ducts result in unacceptable adhesive pull-away - Fig. 2 : Acceptable adhesive press-out on an air duct - Fig. 3 : Acceptable adhesive bead pattern on the perimeter vs unacceptable - Fig. 4 : Tests were conducted on six different adhesive samples - Fig. 5 : The heat stability testing frame for the hot chamber. The plastic panel went into the oven inverted hanging upside down on the pre-painted steel - Table 1 : Adhesion test data En ligne : https://www.adhesivesmag.com/articles/97231-qualifying-an-xyz-robotic-adhesive-a [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33223 [article]

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